We are getting this and our backups have been down for a week. Nothing is working. vSphere 6.5 with a mix of 6.0 and 6.5 ESXi hosts. and every backup job, new or old, that worked perfectly before, is not working at all even on Veeam Backup & Replication 18.104.22.1683 (patch just applied today).
I went to "Backup Infrastructure", selected our vCenter server and rescanned it successfully. no errors.
I've opened backup jobs and "recalculated" them successfully (no errors).
I've rescanned all backup Repo's successfully (no errors).
When I start a backup job even to a local repository on the same physical Windows server, and only backing up 1 Linux vm that is TURNED OFF (or on, doesn't matter), it starts, creates 2 initial files in the repo folder:
<backup job name>.vbm (which is 7KB)
<backup job name><timestamp>.vbk (which is 30866KB)
then it just sits forever:
"Hard disk 1 (0.0 B) 0.0 B read at 0 KB/s [CBT]"