I suspect rclone is not checksuming files on my end

[AndyIbanezK (Andy Ibanez)]

OK, turns out encrypted remotes don't support checksumming on sync. It makes total sense when you think about it.

--checksum-only option? (or equivalent)

--ignore-size means don’t take into account the size when deciding whether something is old or not. An rclone check will always caclucate the checksum. This is because crypt doesn’t support checksums (dropbox stores the checksum of the encrypted file, not the unencrypted file) If you use rclone cryptcheck you can get an integrity check for crypt remotes.

So for now I will just use the filesize checking. When this backup is done I will run cryptcheck on it.