Having the same issue. I checked the log file and it's probably too big to post here (1897 lines long) but did see the following ZIP errors:
0075.574 (0) Binary zip: error (code: 15)
0075.579 (0) The attempt to close the zip file returned an error (). List of files we were trying to add follows (check their permissions).
Toward the end it says:
3081.669 (2) There were no errors in the uploads, so the 'resume' event (3) is being unscheduled
and the last line is:
3082.115 (2) The backup apparently succeeded (with warnings) and is now complete
Does this mean the backups are not working as expected? Just need to make sure I can restore from this backup in the event of a failure. Let me know if you'd like me to email the whole log file.
Thanks!