I reinstalled a fresh Qubes 4.1 and am getting the same behavior.
Just tried to run a backup of vault while it is running and it is hanging at 30K. This is deeply disappointing, and I have not found anyone else having this problem in the months that I’ve been experiencing it.
To make matters worse, in my 2 day project of shutting down and backing up all my qubes I ran into this problem: Restore failure - Unexpected EOF - retrieved data backup size exceed expected size · Issue #7198 · QubesOS/qubes-issues · GitHub
I am not using btrfs as others in that thread seem to be. I did find that compressing my backups seemed to greatly reduce if not eliminate that problem. I had been doing uncompressed to try to save time as suggested by others, because this has all been very time consuming .
Back to my original problem I decided to create a fresh qube and try backing that up to see if there was something about my qubes created in 4.0 that was not working in 4.1. This did not help, still hangs at 30K if qube is running during backup. So it’s really strange that no one else has experienced this.