diff --git a/cmvr-iot-admin/src/main/java/com/cmvr/web/controller/test/TeTaskOrchestrationController.java b/cmvr-iot-admin/src/main/java/com/cmvr/web/controller/test/TeTaskOrchestrationController.java
index 087674d..be5dc9e 100644
--- a/cmvr-iot-admin/src/main/java/com/cmvr/web/controller/test/TeTaskOrchestrationController.java
+++ b/cmvr-iot-admin/src/main/java/com/cmvr/web/controller/test/TeTaskOrchestrationController.java
@@ -33,7 +33,6 @@ class TeTaskOrchestrationController extends BaseController {
             @NotEmpty(message = "任务ID不能为空")
             @RequestParam("taskId") String taskId
     ) {
-        startPage();
         List<TeQueryTaskOrchestraItemVO> list = teTaskOrchestrationService.queryByTaskId(taskId);
         return getDataTable(list);
     }
diff --git a/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/FlowTaskEngine.java b/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/FlowTaskEngine.java
index a10077f..8d72639 100644
--- a/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/FlowTaskEngine.java
+++ b/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/FlowTaskEngine.java
@@ -41,6 +41,9 @@ public class FlowTaskEngine {
             Map<String, Integer> itemOccurrences = new HashMap<>();
 
             for (int i = 0; i < totalItemCount; i++) {
+                // Scheduler deduplication is scoped to one orchestration item. Different
+                // items may legitimately contain the same node IDs (for example, copied flows).
+                flowTaskScheduler.clear(instId);
                 TeQueryTaskDetailDTO item = items.get(i);
                 // 等待当前 item 完成后再执行下一个
                 CountDownLatch latch = new CountDownLatch(1);
diff --git a/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCache.java b/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCache.java
index e2977bc..e86e999 100644
--- a/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCache.java
+++ b/cmvr-iot-test/src/main/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCache.java
@@ -24,7 +24,8 @@ public class FlowSchedulerCache {
     }
 
     public void clearContextCache(String instId) {
-        scheduled.keySet().removeIf(k -> k.startsWith(instId + "_"));
-        completedPreMap.keySet().removeIf(k -> k.startsWith(instId + "_"));
+        String prefix = instId + ":";
+        scheduled.keySet().removeIf(k -> k.startsWith(prefix));
+        completedPreMap.keySet().removeIf(k -> k.startsWith(prefix));
     }
 }
diff --git a/cmvr-iot-test/src/test/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCacheTest.java b/cmvr-iot-test/src/test/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCacheTest.java
new file mode 100644
index 0000000..dce68a3
--- /dev/null
+++ b/cmvr-iot-test/src/test/java/com/cmvr/test/flow/runtime/engine/support/FlowSchedulerCacheTest.java
@@ -0,0 +1,33 @@
+package com.cmvr.test.flow.runtime.engine.support;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class FlowSchedulerCacheTest {
+
+    @Test
+    public void clearAllowsCopiedNodeIdToBeScheduledByNextItem() {
+        FlowSchedulerCache cache = new FlowSchedulerCache();
+        String key = "inst-1:copied-node";
+
+        assertTrue(cache.trySchedule(key));
+        assertFalse(cache.trySchedule(key));
+
+        cache.clearContextCache("inst-1");
+
+        assertTrue(cache.trySchedule(key));
+    }
+
+    @Test
+    public void clearDoesNotAffectAnotherInstanceWithSimilarId() {
+        FlowSchedulerCache cache = new FlowSchedulerCache();
+        String otherInstanceKey = "inst-10:node-1";
+        assertTrue(cache.trySchedule(otherInstanceKey));
+
+        cache.clearContextCache("inst-1");
+
+        assertFalse(cache.trySchedule(otherInstanceKey));
+    }
+}