OK, I just added a new scheduled backup for a few minutes in the future, and watched it work the way it's supposed to. So what's different between now and 2:30AM, when my non-working backups are supposed to happen?
Well, the computer wasn't sleeping, but as noted, I've set the machine to wake up 5 minutes before the backup.
Are there some other logs that may tell what the system was (or wasn't) doing in the wee hours?
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