diff --git a/apps/server/src/services/runtime-service/RuntimeService.ts b/apps/server/src/services/runtime-service/RuntimeService.ts
index b56a0bed1..29e19a86f 100644
--- a/apps/server/src/services/runtime-service/RuntimeService.ts
+++ b/apps/server/src/services/runtime-service/RuntimeService.ts
@@ -93,7 +93,7 @@ class RuntimeService {
    * check whether underlying data of runtime has changed
    */
   update(affectedIds?: string[]) {
-    const hasLoadedElements = state.eventNow && state.eventNext;
+    const hasLoadedElements = state.eventNow || state.eventNext;
     if (!hasLoadedElements) {
       return;
     }
diff --git a/apps/server/src/state.ts b/apps/server/src/state.ts
index 85621892c..b8b180be8 100644
--- a/apps/server/src/state.ts
+++ b/apps/server/src/state.ts
@@ -175,6 +175,7 @@ export const stateMutations = {
 
         // update data which is duplicate between eventNow and timer objects
         state.timer.duration = calculateDuration(state.eventNow.timeStart, state.eventNow.timeEnd);
+        state.timer.current = getCurrent(state);
         state.timer.expectedFinish = getExpectedFinish(state);
         return;
       }