Presumably the ones posted in Verifications section. Three is just the default of 1 set, configurable by –backup-test-samples if you’d like to see if you can dial that up and down. For context, you can see these
Verifying backend files (note backup job has a “Verify files” button that might error without doing a backup)
The TEST command
Presumably referring to the old libraries below. There was a libs update last year. I guess it didn’t do these.
https://github.com/duplicati/duplicati/tree/master/thirdparty/SharePoint.CSOM
It’s probably good to see a Canary user because if the libraries do get updated, I’m not sure whether the developer doing it has OD4B to test with. It’s too bad we don’t have nightly builds – that’d be even better.
Backend OneDrive for Business Errors - “Cannot send a content-body with this verb-type.” #4192
got the “same problem” post, but didn’t point here for possible solution. This mention will create a pointer, however a personal note on the GitHub issue might be good, if you are willing to help test a library update.
Work in openmediavault get error “Cannot send a content-body with this verb-type” #3497
says Rclone was a workaround for OD4B access. Possibly another workaround would be OneDrive v2.