The child process of Time Event remains active in Activities / Process Monitoring.
The same object has status ENDED_OK in the Statistics / Executions.
This happens around the period turnaround.
This behavior is observed when the Time Event was still running at the period turnaround, while at the same Time Event is started for the next day / period.
In the case where the Time Event of the next period has been started, the AE does not update the EH table anymore for same Event in the previous period.
Release : v12.1 / v12.2 / v12.3
Component : AUTOMATION ENGINE
Broadcom DEV department considers this normal behavior. There will be no fix.