[Fix][UI] Fix bug where the home page displays no data. (#10697)

dolphinscheduler-ui/src/views/home/index.tsx

@@ -35,8 +35,9 @@ export default defineComponent({
     const { getProcessState, processVariables } = useProcessState()
 
     const initData = () => {
-      taskStateRef.value = getTaskState(dateRef.value)
-      processStateRef.value = getProcessState(dateRef.value)
+      taskStateRef.value = getTaskState(dateRef.value) || taskStateRef.value
+      processStateRef.value =
+        getProcessState(dateRef.value) || processStateRef.value
     }
 
     const handleTaskDate = (val: any) => {