I have VEB configured for 14 restore points and it was working fine.
Two days ago I realized that VEB had missed the backup because the destination NAS was powered off.
I switched on the NAS and clicked "backup now" in the Control Panel window. It failed again because the NAS was still starting and was not available yet.
Waited some minutes and clicked "backup now" again.
This time VEB did a FULL backup (I expected and incremental) and truncated the backup chain as if there were no previous backups. If I go into Restore, I see only that full and the subsequent incremental; the previous full and incrementals are no longer available, even if the relevant files, vbk and vibs, are still on the destination folder.