[Plugin: WordPress Backup to Dropbox] Not finding SQL file in backup with WPB2D?

I found this in the FAQ:
“Where is my database SQL dump located?
The database is backed up into a file named ‘[database name]-backup.sql’. It will be will be found at the path ‘wp-content/backups’ within the App folder of your Dropbox.”

When we had previous problems with the backup I had to exclude that folder from the items to backup. when I unchecked it to include it again, and tried running “backup now” again, I saw the line telling me the SQL file was being backed up but then after that never saw any “xx:xx:xx processed xxxx files” progress indication.

It’s like everything has to be JUST RIGHT, spit on the ground and lick your finger, clap your hands three times and MAYBE it will work… ??