Gitaly (Cluster) Backup error - storage name not found

Since shortly we're facing the following error during the backup of gitaly cluster:

{"level":"error","msg":"create: pipeline: 1 failures encountered:\n - @hashed/6b/86/6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b.wiki.git (gitlab-instance-2038587f/Monitoring.wiki): server-side create: rpc error: code = InvalidArgument desc = storage name not found\n","pid":59,"time":"2025-08-30T08:28:22.565Z"}

This is basically almost at the end of the backup process this error occurs and this is if I am not wrong a gitlab created repo. Any idea how this may be fixed?