diff --git a/web/hwlab-cloud-web/src/stores/workbench.ts b/web/hwlab-cloud-web/src/stores/workbench.ts
index 2f81a23e..cc438b9b 100644
--- a/web/hwlab-cloud-web/src/stores/workbench.ts
+++ b/web/hwlab-cloud-web/src/stores/workbench.ts
@@ -1232,6 +1232,7 @@ function nonBlockingProjection(projection: ProjectionDiagnostic | null): Project
   }
 
   function scheduleRealtimeGapHydration(reason: string): void {
+    if (!shouldHydrateRealtimeGap(reason)) return;
     if (typeof window === "undefined") {
       void hydrateRealtimeGap(reason);
       return;
@@ -1243,6 +1244,12 @@ function nonBlockingProjection(projection: ProjectionDiagnostic | null): Project
     }, 200);
   }
 
+  function shouldHydrateRealtimeGap(reason: string): boolean {
+    if (reason.endsWith(":open")) return false;
+    if (reason.endsWith(":error") || reason === "visibility") return Boolean(activeTurnGapTraceId());
+    return true;
+  }
+
   async function hydrateRealtimeGap(reason: string): Promise<void> {
     if (shouldSkipActiveTurnRestGap(reason)) {
       scheduleActiveTurnGapRefresh(reason);