diff --git a/backend/src/main/java/com/goldenchart/service/LiveStrategyEvaluator.java b/backend/src/main/java/com/goldenchart/service/LiveStrategyEvaluator.java
index 4bd0693..3be8cde 100644
--- a/backend/src/main/java/com/goldenchart/service/LiveStrategyEvaluator.java
+++ b/backend/src/main/java/com/goldenchart/service/LiveStrategyEvaluator.java
@@ -101,23 +101,33 @@ public class LiveStrategyEvaluator {
                 ta4jStorage.getOrCreate(market, candleType).getBarCount());
 
         for (GcLiveStrategySettings s : settings) {
-            if (!Boolean.TRUE.equals(s.getIsLiveCheck())) continue;
-            if (!"CANDLE_CLOSE".equals(s.getExecutionType())) continue;
-            if (s.getStrategyId() == null) continue;
-            if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) continue;
-
-            String result = evaluate(market, candleType, s.getStrategyId(),
-                    s.getPositionMode(), maturedIndex,
-                    s.getDeviceId(), s.getUserId());
-            if (!"NONE".equals(result)) {
-                log.info("[Evaluator] CANDLE_CLOSE {} {} idx={} mode={} → {}",
-                        market, candleType, maturedIndex, s.getPositionMode(), result);
-                return result;
-            }
+            String result = evaluateSettingOnCandleClose(s, market, candleType, maturedIndex);
+            if (!"NONE".equals(result)) return result;
         }
         return "NONE";
     }
 
+    /**
+     * 단일 live 설정 — 봉 마감(CANDLE_CLOSE) 평가.
+     */
+    public String evaluateSettingOnCandleClose(GcLiveStrategySettings s, String market,
+                                               String candleType, int maturedIndex) {
+        if (!Boolean.TRUE.equals(s.getIsLiveCheck())) return "NONE";
+        if (!"CANDLE_CLOSE".equals(s.getExecutionType())) return "NONE";
+        if (s.getStrategyId() == null) return "NONE";
+        if (!ta4jStorage.exists(market, candleType)) return "NONE";
+        if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) return "NONE";
+
+        String result = evaluate(market, candleType, s.getStrategyId(),
+                s.getPositionMode(), maturedIndex,
+                s.getDeviceId(), s.getUserId());
+        if (!"NONE".equals(result)) {
+            log.info("[Evaluator] CANDLE_CLOSE strategyId={} {} {} idx={} mode={} → {}",
+                    s.getStrategyId(), market, candleType, maturedIndex, s.getPositionMode(), result);
+        }
+        return result;
+    }
+
     /**
      * 방식 B — 3초 스케줄러에서 호출.
      *
@@ -141,37 +151,44 @@ public class LiveStrategyEvaluator {
         List<GcLiveStrategySettings> settings = settingsRepo.findActiveByMarket(market);
         if (settings.isEmpty()) return "NONE";
 
+        for (GcLiveStrategySettings s : settings) {
+            String result = evaluateSettingRealtimeTick(s, market, candleType);
+            if (!"NONE".equals(result)) return result;
+        }
+        return "NONE";
+    }
+
+    /**
+     * 단일 live 설정 — 3초 스케줄러(REALTIME_TICK) 평가.
+     */
+    public String evaluateSettingRealtimeTick(GcLiveStrategySettings s, String market,
+                                              String candleType) {
+        if (!Boolean.TRUE.equals(s.getIsLiveCheck())) return "NONE";
+        if (!"REALTIME_TICK".equals(s.getExecutionType())) return "NONE";
+        if (s.getStrategyId() == null) return "NONE";
         if (!ta4jStorage.exists(market, candleType)) return "NONE";
+
         BarSeries series = ta4jStorage.getOrCreate(market, candleType);
         if (series.isEmpty()) return "NONE";
         int currentIndex = series.getEndIndex();
+        if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) return "NONE";
 
-        // 동일 provisional 봉에서 이미 시그널을 냈으면 중복 발화 방지
-        String dedupeKey = market + ":" + candleType;
+        String dedupeKey = market + ":" + candleType + ":" + s.getStrategyId();
         Integer lastSignaledIdx = realtimeSignaledIdx.get(dedupeKey);
         if (lastSignaledIdx != null && lastSignaledIdx == currentIndex) return "NONE";
 
-        for (GcLiveStrategySettings s : settings) {
-            if (!Boolean.TRUE.equals(s.getIsLiveCheck())) continue;
-            if (!"REALTIME_TICK".equals(s.getExecutionType())) continue;
-            if (s.getStrategyId() == null) continue;
-            if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) continue;
+        String cacheKey = market + ":" + candleType + ":" + s.getStrategyId();
+        triggerRulesCache.remove(cacheKey);
 
-            // ★ Ta4j CachedIndicator 캐시 무효화 — Rule 트리 재빌드
-            String cacheKey = market + ":" + candleType + ":" + s.getStrategyId();
-            triggerRulesCache.remove(cacheKey);
-
-            String result = evaluate(market, candleType, s.getStrategyId(),
-                    s.getPositionMode(), currentIndex,
-                    s.getDeviceId(), s.getUserId());
-            if (!"NONE".equals(result)) {
-                log.info("[Evaluator] REALTIME_TICK {} {} idx={} mode={} → {}",
-                        market, candleType, currentIndex, s.getPositionMode(), result);
-                realtimeSignaledIdx.put(dedupeKey, currentIndex);
-                return result;
-            }
+        String result = evaluate(market, candleType, s.getStrategyId(),
+                s.getPositionMode(), currentIndex,
+                s.getDeviceId(), s.getUserId());
+        if (!"NONE".equals(result)) {
+            log.info("[Evaluator] REALTIME_TICK strategyId={} {} {} idx={} mode={} → {}",
+                    s.getStrategyId(), market, candleType, currentIndex, s.getPositionMode(), result);
+            realtimeSignaledIdx.put(dedupeKey, currentIndex);
         }
-        return "NONE";
+        return result;
     }
 
     /**
@@ -192,31 +209,39 @@ public class LiveStrategyEvaluator {
     public String evaluateRealtimeAtClose(String market, String candleType, int maturedIndex) {
         List<GcLiveStrategySettings> settings = settingsRepo.findActiveByMarket(market);
         if (settings.isEmpty()) return "NONE";
-        if (!ta4jStorage.exists(market, candleType)) return "NONE";
 
         for (GcLiveStrategySettings s : settings) {
-            if (!Boolean.TRUE.equals(s.getIsLiveCheck())) continue;
-            if (!"REALTIME_TICK".equals(s.getExecutionType())) continue;
-            if (s.getStrategyId() == null) continue;
-            if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) continue;
-
-            // CachedIndicator 캐시 무효화 — 확정봉의 최종 close 로 재계산
-            String cacheKey = market + ":" + candleType + ":" + s.getStrategyId();
-            triggerRulesCache.remove(cacheKey);
-
-            String result = evaluate(market, candleType, s.getStrategyId(),
-                    s.getPositionMode(), maturedIndex,
-                    s.getDeviceId(), s.getUserId());
-            if (!"NONE".equals(result)) {
-                log.info("[Evaluator] REALTIME_TICK @candle_close {} {} idx={} mode={} → {}",
-                        market, candleType, maturedIndex, s.getPositionMode(), result);
-                realtimeSignaledIdx.put(market + ":" + candleType, maturedIndex);
-                return result;
-            }
+            String result = evaluateSettingRealtimeAtClose(s, market, candleType, maturedIndex);
+            if (!"NONE".equals(result)) return result;
         }
         return "NONE";
     }
 
+    /**
+     * 단일 live 설정 — 봉 마감 시점 REALTIME_TICK 평가(교차 누락 방지).
+     */
+    public String evaluateSettingRealtimeAtClose(GcLiveStrategySettings s, String market,
+                                                   String candleType, int maturedIndex) {
+        if (!Boolean.TRUE.equals(s.getIsLiveCheck())) return "NONE";
+        if (!"REALTIME_TICK".equals(s.getExecutionType())) return "NONE";
+        if (s.getStrategyId() == null) return "NONE";
+        if (!ta4jStorage.exists(market, candleType)) return "NONE";
+        if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) return "NONE";
+
+        String cacheKey = market + ":" + candleType + ":" + s.getStrategyId();
+        triggerRulesCache.remove(cacheKey);
+
+        String result = evaluate(market, candleType, s.getStrategyId(),
+                s.getPositionMode(), maturedIndex,
+                s.getDeviceId(), s.getUserId());
+        if (!"NONE".equals(result)) {
+            log.info("[Evaluator] REALTIME_TICK @candle_close strategyId={} {} {} idx={} mode={} → {}",
+                    s.getStrategyId(), market, candleType, maturedIndex, s.getPositionMode(), result);
+            realtimeSignaledIdx.put(market + ":" + candleType + ":" + s.getStrategyId(), maturedIndex);
+        }
+        return result;
+    }
+
     /** 설정 변경 시 해당 마켓 캐시 무효화 */
     public void invalidateCache(String market) {
         triggerRulesCache.keySet().removeIf(k -> k.startsWith(market + ":"));
diff --git a/backend/src/main/java/com/goldenchart/websocket/BarBuilder.java b/backend/src/main/java/com/goldenchart/websocket/BarBuilder.java
index 53c56eb..e9cd102 100644
--- a/backend/src/main/java/com/goldenchart/websocket/BarBuilder.java
+++ b/backend/src/main/java/com/goldenchart/websocket/BarBuilder.java
@@ -170,40 +170,49 @@ public class BarBuilder {
      */
     private void evaluateStrategyOnBarClose(String market, String candleType, int maturedIndex,
                                             Bar signalBar) {
-        String closeSignal = liveStrategyEvaluator.evaluateCandleClose(market, candleType, maturedIndex);
-        String signalExecType = "CANDLE_CLOSE";
+        List<GcLiveStrategySettings> activeSettings = liveSettingsRepo.findActiveByMarket(market).stream()
+                .filter(s -> Boolean.TRUE.equals(s.getIsLiveCheck()) && s.getStrategyId() != null)
+                .toList();
+        if (activeSettings.isEmpty()) return;
 
-        if ("NONE".equals(closeSignal)) {
-            closeSignal = liveStrategyEvaluator.evaluateRealtimeAtClose(market, candleType, maturedIndex);
-            signalExecType = "REALTIME_TICK";
-        }
+        long candleTimeEpoch = signalBar.getEndTime().getEpochSecond()
+                - signalBar.getTimePeriod().getSeconds();
 
-        if ("BUY".equals(closeSignal) || "SELL".equals(closeSignal)) {
-            publishStrategySignal(market, candleType, signalBar, closeSignal);
-        }
+        for (GcLiveStrategySettings s : activeSettings) {
+            if (!conditionTimeframes.usesTimeframe(s.getStrategyId(), candleType)) continue;
 
-        if (!"BUY".equals(closeSignal) && !"SELL".equals(closeSignal)) return;
+            String closeSignal = "NONE";
+            String signalExecType = null;
 
-        try {
-            final String execType = signalExecType;
-            GcLiveStrategySettings activeSetting = liveSettingsRepo.findActiveByMarket(market)
-                    .stream().filter(s -> Boolean.TRUE.equals(s.getIsLiveCheck())
-                            && execType.equals(s.getExecutionType())).findFirst().orElse(null);
-            long candleTimeEpoch = signalBar.getEndTime().getEpochSecond()
-                    - signalBar.getTimePeriod().getSeconds();
-            String devId = activeSetting != null ? activeSetting.getDeviceId() : null;
-            Long uid = activeSetting != null ? activeSetting.getUserId() : null;
-            Long stratId = activeSetting != null ? activeSetting.getStrategyId() : null;
-            tradeSignalService.save(
-                    devId, uid, market, stratId, null,
-                    closeSignal, signalBar.getClosePrice().doubleValue(),
-                    candleTimeEpoch, candleType, execType);
-            if (devId != null) {
-                orderExecutionQueue.submitSignal(devId, uid, market, stratId, closeSignal,
-                        signalBar.getClosePrice().doubleValue());
+            if ("CANDLE_CLOSE".equals(s.getExecutionType())) {
+                closeSignal = liveStrategyEvaluator.evaluateSettingOnCandleClose(
+                        s, market, candleType, maturedIndex);
+                signalExecType = "CANDLE_CLOSE";
+            } else if ("REALTIME_TICK".equals(s.getExecutionType())) {
+                closeSignal = liveStrategyEvaluator.evaluateSettingRealtimeAtClose(
+                        s, market, candleType, maturedIndex);
+                signalExecType = "REALTIME_TICK";
+            }
+
+            if (!"BUY".equals(closeSignal) && !"SELL".equals(closeSignal)) continue;
+
+            publishStrategySignal(market, candleType, signalBar, closeSignal);
+            try {
+                tradeSignalService.save(
+                        s.getDeviceId(), s.getUserId(),
+                        market, s.getStrategyId(), null,
+                        closeSignal, signalBar.getClosePrice().doubleValue(),
+                        candleTimeEpoch, candleType, signalExecType);
+                if (s.getDeviceId() != null) {
+                    orderExecutionQueue.submitSignal(
+                            s.getDeviceId(), s.getUserId(), market,
+                            s.getStrategyId(), closeSignal,
+                            signalBar.getClosePrice().doubleValue());
+                }
+            } catch (Exception e) {
+                log.warn("[BarBuilder] 시그널 처리 실패 ({}/{} strategyId={}): {}",
+                        market, candleType, s.getStrategyId(), e.getMessage());
             }
-        } catch (Exception e) {
-            log.warn("[BarBuilder] 시그널 처리 실패 ({}/{}): {}", market, candleType, e.getMessage());
         }
     }
 
diff --git a/backend/src/main/java/com/goldenchart/websocket/LiveStrategyScheduler.java b/backend/src/main/java/com/goldenchart/websocket/LiveStrategyScheduler.java
index 006c695..0026c1d 100644
--- a/backend/src/main/java/com/goldenchart/websocket/LiveStrategyScheduler.java
+++ b/backend/src/main/java/com/goldenchart/websocket/LiveStrategyScheduler.java
@@ -69,7 +69,7 @@ public class LiveStrategyScheduler {
             BarSeries series = ta4jStorage.getOrCreate(market, candleType);
             if (series.isEmpty()) return;
 
-            String signal = evaluator.evaluateRealtimeTick(market, candleType);
+            String signal = evaluator.evaluateSettingRealtimeTick(s, market, candleType);
             if ("BUY".equals(signal) || "SELL".equals(signal)) {
                 // 현재 진행 중인 캔들 정보 조회
                 org.ta4j.core.Bar lastBar = series.getLastBar();
diff --git a/frontend/src/components/LiveStrategyPanel.tsx b/frontend/src/components/LiveStrategyPanel.tsx
index b9c1fbb..a07a730 100644
--- a/frontend/src/components/LiveStrategyPanel.tsx
+++ b/frontend/src/components/LiveStrategyPanel.tsx
@@ -13,7 +13,10 @@ import {
   saveLiveStrategySettings,
   type LiveStrategySettingsDto,
 } from '../utils/backendApi';
-import { warnStrategyTimeframeMismatch } from '../utils/strategyTimeframeSync';
+import {
+  syncStrategyTimeframesFromLayoutIfNeeded,
+  warnStrategyTimeframeMismatch,
+} from '../utils/strategyTimeframeSync';
 import { getKoreanName } from '../utils/marketNameCache';
 
 interface Strategy {
@@ -73,6 +76,8 @@ const LiveStrategyPanel: React.FC<LiveStrategyPanelProps> = ({
     const next: LiveStrategySettingsDto = { ...settings, ...patch, market };
     const prev = settings;
     if (next.isLiveCheck && next.strategyId != null) {
+      const synced = await syncStrategyTimeframesFromLayoutIfNeeded(next.strategyId);
+      if (!synced) return;
       const ok = await warnStrategyTimeframeMismatch(next.strategyId);
       if (!ok) return;
       try {
diff --git a/frontend/src/components/SettingsPage.tsx b/frontend/src/components/SettingsPage.tsx
index 9d097cd..9975747 100644
--- a/frontend/src/components/SettingsPage.tsx
+++ b/frontend/src/components/SettingsPage.tsx
@@ -8,6 +8,7 @@ import {
   saveLiveStrategySettings,
   type LiveStrategySettingsDto,
 } from '../utils/backendApi';
+import { syncStrategyTimeframesFromLayoutIfNeeded } from '../utils/strategyTimeframeSync';
 import { BacktestSettingsPanel } from './BacktestSettingsPanel';
 import IndicatorMainDefaultsPanel, {
   type IndicatorSaveUiState,
@@ -930,6 +931,10 @@ const StrategyPanel: React.FC<StrategyPanelProps> = ({
   const persistLive = useCallback(async (patch: Partial<LiveStrategySettingsDto>) => {
     if (virtualDriven) return;
     const next: LiveStrategySettingsDto = { ...liveSettings, ...patch, market: liveMarket };
+    if (next.isLiveCheck && next.strategyId != null) {
+      const synced = await syncStrategyTimeframesFromLayoutIfNeeded(next.strategyId);
+      if (!synced) return;
+    }
     setLiveSaving(true);
     try {
       const saved = await saveLiveStrategySettings(next);
diff --git a/frontend/src/components/VirtualTradingPage.tsx b/frontend/src/components/VirtualTradingPage.tsx
index 7907fb7..704b94d 100644
--- a/frontend/src/components/VirtualTradingPage.tsx
+++ b/frontend/src/components/VirtualTradingPage.tsx
@@ -52,7 +52,10 @@ import {
   syncVirtualTargetsToBackend,
   stopVirtualLiveOnBackend,
 } from '../utils/virtualLiveStrategySync';
-import { warnStrategyTimeframeMismatch } from '../utils/strategyTimeframeSync';
+import {
+  syncStrategyTimeframesFromLayoutIfNeeded,
+  warnStrategyTimeframeMismatch,
+} from '../utils/strategyTimeframeSync';
 import { pinStrategyEvaluationTimeframes } from '../utils/strategyTimeframePin';
 import { persistVirtualTargetPinned } from '../utils/virtualTargetMutations';
 import {
@@ -284,6 +287,11 @@ const VirtualTradingPage: React.FC<Props> = ({
       return;
     }
     const globalStrat = strategies.find(s => s.id === session.globalStrategyId);
+    const synced = await syncStrategyTimeframesFromLayoutIfNeeded(
+      session.globalStrategyId,
+      globalStrat,
+    );
+    if (!synced) return;
     const ok = await warnStrategyTimeframeMismatch(session.globalStrategyId, globalStrat);
     if (!ok) return;
     try {
diff --git a/frontend/src/utils/strategyTimeframePin.ts b/frontend/src/utils/strategyTimeframePin.ts
index c3ce162..4a38b09 100644
--- a/frontend/src/utils/strategyTimeframePin.ts
+++ b/frontend/src/utils/strategyTimeframePin.ts
@@ -1,11 +1,13 @@
 import { loadStrategyTimeframes, pinCandleWatch, repairStrategyTimeframes } from './backendApi';
 import { normalizeStartCandleType } from './strategyStartNodes';
+import { syncStrategyTimeframesFromLayoutIfNeeded } from './strategyTimeframeSync';
 
 /** 전략 DSL 평가 분봉 전체 pin — 1m 집계·상위 봉 warm-up */
 export async function pinStrategyEvaluationTimeframes(
   market: string,
   strategyId: number,
 ): Promise<string[]> {
+  await syncStrategyTimeframesFromLayoutIfNeeded(strategyId);
   try {
     await repairStrategyTimeframes(strategyId);
   } catch {
diff --git a/frontend/src/utils/strategyTimeframeSync.ts b/frontend/src/utils/strategyTimeframeSync.ts
index 4ab47a4..fefcdf8 100644
--- a/frontend/src/utils/strategyTimeframeSync.ts
+++ b/frontend/src/utils/strategyTimeframeSync.ts
@@ -1,13 +1,16 @@
-import { loadStrategyTimeframes, saveStrategy, type StrategyDto } from './backendApi';
+import { loadStrategy, loadStrategyTimeframes, repairStrategyTimeframes, saveStrategy, type StrategyDto } from './backendApi';
 import { loadStrategyFlowLayout } from './strategyEditorLayoutStorage';
 import {
   alignBuySellStartCandleTypesForSave,
   collectDslBranches,
   collectTimeframesFromEditorState,
+  decodeConditionForEditor,
   encodeConditionForSave,
+  mergeStartMetaForLoad,
+  normalizeStartCombineOp,
   type EditorConditionState,
 } from './strategyConditionSerde';
-import { START_NODE_ID, getStartCandleTypes, normalizeStartCandleType } from './strategyStartNodes';
+import { getStartCandleTypes, normalizeStartCandleType } from './strategyStartNodes';
 import type { LogicNode } from './strategyTypes';
 import type { StrategyFlowLayoutStore } from './strategyEditorLayoutStorage';
 
@@ -16,9 +19,11 @@ function collectFromFlowLayout(strategyId: number): string[] {
   if (!layout) return [];
   const set = new Set<string>();
   for (const side of ['buy', 'sell'] as const) {
-    const meta = layout[side]?.startMeta?.[START_NODE_ID];
-    if (!meta) continue;
-    for (const ct of getStartCandleTypes(meta)) set.add(normalizeStartCandleType(ct));
+    const metaMap = layout[side]?.startMeta;
+    if (!metaMap) continue;
+    for (const meta of Object.values(metaMap)) {
+      for (const ct of getStartCandleTypes(meta)) set.add(normalizeStartCandleType(ct));
+    }
   }
   return [...set];
 }
@@ -94,6 +99,72 @@ export async function warnStrategyTimeframeMismatch(
   return false;
 }
 
+function buildEditorStateFromStrategy(
+  strategy: StrategyDto,
+  layout: StrategyFlowLayoutStore | null,
+  side: 'buy' | 'sell',
+): EditorConditionState {
+  const decoded = decodeConditionForEditor(
+    (side === 'buy' ? strategy.buyCondition : strategy.sellCondition) as LogicNode | null,
+  );
+  const snap = layout?.[side];
+  return {
+    root: decoded.root,
+    startMeta: mergeStartMetaForLoad(decoded.startMeta, snap?.startMeta),
+    extraStartIds: snap?.extraStartIds?.length ? snap.extraStartIds : decoded.extraStartIds,
+    extraRoots: snap?.extraRoots ?? decoded.extraRoots,
+    startCombineOp: normalizeStartCombineOp(snap?.startCombineOp ?? decoded.startCombineOp),
+  };
+}
+
+/**
+ * flow layout(localStorage)의 START 분봉이 서버 DSL과 다르면 편집기 저장 없이 자동 동기화.
+ * @returns false — layout 없음 등으로 동기화 불가
+ */
+export async function syncStrategyTimeframesFromLayoutIfNeeded(
+  strategyId: number,
+  strategy?: StrategyDto | null,
+): Promise<boolean> {
+  const uiTfs = collectUiEvaluationTimeframes(strategyId, strategy);
+  if (uiTfs.length === 0) return true;
+
+  let serverTfs: string[];
+  try {
+    serverTfs = await loadStrategyTimeframes(strategyId);
+  } catch {
+    return true;
+  }
+  const uiSet = new Set(uiTfs.map(tf => normalizeStartCandleType(tf)));
+  const serverSet = new Set(serverTfs.map(tf => normalizeStartCandleType(tf)));
+  const missingOnServer = uiTfs.filter(tf => !serverSet.has(normalizeStartCandleType(tf)));
+  if (missingOnServer.length === 0) return true;
+
+  const layout = loadStrategyFlowLayout(String(strategyId));
+  if (!layout) {
+    return warnStrategyTimeframeMismatch(strategyId, strategy);
+  }
+
+  const strat = strategy ?? await loadStrategy(strategyId);
+  if (!strat) return true;
+
+  const buyState = buildEditorStateFromStrategy(strat, layout, 'buy');
+  const sellState = buildEditorStateFromStrategy(strat, layout, 'sell');
+
+  await persistStrategyEvaluationTimeframes(
+    strategyId,
+    strat.name,
+    strat.description ?? '',
+    buyState,
+    sellState,
+  );
+  try {
+    await repairStrategyTimeframes(strategyId);
+  } catch {
+    /* repair optional */
+  }
+  return true;
+}
+
 /** START 분봉 변경 시 전략 DSL을 서버에 즉시 반영 */
 export async function persistStrategyEvaluationTimeframes(
   strategyId: number,