We've had some hiccups with Macrium lately so I've been auditing the backups in service and have found A LOT of computers with missed backups and no explanations as to why. One for example, has been setup with Reflect Free 7.3.xxxx with weekly SSD drive backups to an internal rotating drive. SSD = C & D drives with UEFI partitions mixed in. Weekly, Wednesdays
@ 10pm. The computer is a desktop and on all the time behind a battery backup, so not likely.. ever off.
Here is the rundown of the log for the past year:

Those are some giant leaps when relying on backups, especially in the Microsoft climate of us all being beta testers for them. We shouldn't have to be beta testers for Macrium as well. I'd guarantee the computer was on at the time, though I can't confirm whether it was logged in.. nine times out of ten this PC is Windows Key - L locked at the end of the night and left, baring any Windows updates that may force a reboot. Regardless, that is a lot of missed weeks of backups, especially May & June.
Where would a person start to see what is going on and why the backups are not running and why are missed backups not being logged? I checked Other Tasks -> Edit Defaults -> Schedule and found this machine was still set to "Use the Windows Task Scheduler", but the backups have been failing/missing for a lot longer than that new feature has been out. Plus, reading here on the forum, others have mentioned better luck with missing backups by going
back to WTS, so I wouldn't expect things to be worse.
Thanks,
Wayne