Hi Again.
The issue could be generated by Microsoft retiring update?
It appears to be an issue by clients downloading the update. The updates are downloaded by clients directly from Microsoft, not from WSUS server.
2021/03/11 14:11:32.5142078 5952 4428 DownloadManager Updates to download = 1
2021/03/11 14:11:32.5142112 5952 4428 Agent Title = 2021-03 Cumulative Update for Windows 10 Version 20H2 for x64-based Systems (KB5000802)
2021/03/11 14:11:32.5142155 5952 4428 Agent UpdateId = 7AB929A6-5769-454A-9C23-EBA57E59965E.200
2021/03/11 14:11:32.5165832 5952 4428 DownloadManager Update 7AB929A6-5769-454A-9C23-EBA57E59965E.200 is UUP on Prem bundle.
2021/03/11 14:11:32.5165903 5952 4428 DownloadManager The update 7AB929A6-5769-454A-9C23-EBA57E59965E.200 has 0 children which all are invalid
2021/03/11 14:11:32.5165945 5952 4428 DownloadManager Update 0 in call 634 was an empty bundle. Notifying call.
2021/03/11 14:11:32.5192983 5952 4428 DownloadManager * END * Download Call Complete. Call 634 for caller MoUpdateOrchestrator has completed; signaling completion.
2021/03/11 14:11:32.5237362 5952 4428 Agent Effective power state: AC; IsOnAC: Yes.
2021/03/11 14:11:32.5237520 5952 4428 IdleTimer WU operation (DL.MoUpdateOrchestrator, operation # 2160) stopped; does use network; is not at background priority
2021/03/11 14:11:32.5237611 5952 4428 Agent Released network PDC reference for callId {E6445BBF-0A1D-4456-B091-DEFCAEB6547B}; ActivationID: 2160
2021/03/11 14:11:32.5297800 9120 7040 ComApi RESUMED Download ClientId = MoUpdateOrchestrator
Thanks again.