I apologize! I wasn't specific enough. Only the "Full" backup once a month takes several hours. Plus, the storage drive is an HDD and USB 2.0 on an older Win 10 Pro machine. The failures take 0...

Windows 10 Pro: 22Hs (OS Build 19045.4291)
I belive I may have encountered an unhandled exception where Macrium Reflect doesn't create a backup full/diff or Incremental.
I have set up scheduled...

It has been a while since these were posted; however the problem still shows up from time to time.
dam or DAM refers to the Desktop Activity Moderator. It moderates various aspects of desktop...