I have the same or at least a similar problem. I am on 6.12.0-rc5. I am using a directory instead of a docker image, which is placed on the cache pool (2 nvme drives, raid 1, btrfs). The cache pool is not full and not corrupt. Any suggestions? Tried restarting and stopping individual containers, no change. Please find screenshots and diagnostics attached.
Best
Daniel
server-diagnostics-20230516-1420.zip