hey! since the latest version of joplin i got on 2 different machines (windows 7 and 10) error during sync, the error is not more specified. iOS versions are syncing fine with onedrive.
I now changed to dropbox (with the same notebooks etc.) and sync with dropbox works without any error, so it looks like a particular OneDirve issue.
in total there are about 1200 notes, but no attachements) in total all files are about 3 MB
Joplin 1.0.195 (prod, win32)
Revision: f4a562bc (master)