CEP report upon POA update after upgrade failed with the following message:
Task name CEP report upon POA update Method name taskReport on OBJREF:Statistics:0:UsageDataReporter:0 Last execution output Request has been timed out, details: system exception, ID 'IDL:omg.org/CORBA/TIMEOUT:1.0' TAO exception, minor code = 3e (timeout during recv; low 7 bits of errno: 62 Timer expired), completed = MAYBE
If you check the log you will find that task was failed due to default task timeout (1 hour).
This tasks processes all APS instances during the run. In case of huge amount of APS instances it may not process all of them during 1 hour. In the release OA 5.5 update 7 there is a feature implemented for this kind of tasks. If the first run failed, it starts processing instances from where the last run stopped.
Rerun failed task. If it still fails then increase the timeout of the task up to 2 hours or above using the article https://kb.cloudblue.com/en/115550 and re-run failed task again.