Warnings on backup jobs

[BostjanUNIJA]

Hi.

Veeam Backup & Replication 11 (Build 11.0.1.1261 P20211211)

Backup jobs started to throw warnings below:
Failed to obtain guest file system local users: VSSControl: GetGuestGroupMembers failed, groupSid 'S-1-5-32-544' Details: Failed to call RPC function 'Vss.GetGuestGroupMembers': Error code: 0x80004005. Failed to invoke func [GetGuestGroupMembers]: Unspecified error. The meta-file "C:\Windows\TEMP\ifd4166.tmp" does not contain attribute "Exec.Result" under the tree "".

Any idea why is this happening?

[HannesK]

Hello,
That sounds like a technical issue. Please provide a support case ID for this issue, as requested when you click New Topic.
Without case number, the topic will eventually be
deleted by moderators.

Best regards,
Hannes
PS: support can only help if you upload logs https://www.veeam.com/kb1832

[BostjanUNIJA]

Hi.
Case #05526165

[BostjanUNIJA]

fyi: So far it looks like that restart of veeam server (and also domain controllers) solved this issue. Next scheduled Veeam job did not show this errors anymore.