by Ken Task.
What does '2 own blocks' mean? Are those 'standard core blocks' or customized blocks or blocks that might have dependencies?
Settings say keep 2. So the files found show only 2 for ID 1 - although the dates are not consecutive.
Yes, remove those backup files (can't restore front page to front page anyway). Let's see if, then, since you've scheduled to run every day, there are not 2 consecutive by date ID 1 backups.
Do same command line search for the next course ID. Got 2 backups?
So of clearning all the tables related fixes this on dev, why not do same on production?
'spirit of sharing', Ken