@archw hello.
I had the same issue with xoa VM (vates build).
Body timeout error on backups.
I tried another VM XO from sources. Didn't fix the issue and some backups are also failing.
To my understanding is not XO issue.
Also this started when i upgrade the hosts from 8.2 to 8.3, im not sure if this is relevant or not, or is just a coincidence.
Also i have 2 hosts in the same pool. Backups are failing on both hosts.
Any updates from your side?? What is your suggestion on what i should try next?