I've owned Retrospect 8, 9, and I just upgraded to10 last week and all versions have periodically done the same thing. Backups work great but then stop with the next "Waiting" backup saying "Waiting for Execution unit" even though no backup is currently running and hasn't run for days. The previous backup (days prior) completed with no errors/issues.
I found if I click the "Pause" buttom (to stop all executions) and then click it again to restart things, then my backups continue OK until the next time it gets stuck.
I shouldn't have to keep monitoring Retrospect to make sure it is correctly running my scheduled backups and this hasn't been fixed in 3 different versions of Retrospect.
Any suggestions, thoughts, or ideas would be appreciated.