This is going to be interesting to troubleshoot. It’s happening on one particular machine of three that I have running backups, about once a week on average, for maybe a month now.
The scheduled backup that day simply doesn’t start. The display says the next backup is scheduled for 19:30 that day. Next I look, nothing has happened (not even the Before script, which leaves a trail I can check), and the display says the next backup is scheduled for 19:30 the next day.
The system-level Show Logs shows nothing after the conclusion of the backup from the previous day.
The database is not locked - I was able to run a trial restore with no issues.