"Operation has failed"
Am using TrueImage 2018. After I successfully back up my Windows Volumes, I "X" out of TI and then remove the external drive that has my backup (I verify all my backups before I do this). Sometime later, it'll be days or weeks, I randomly get the message "operation has failed". Even though I am *NOT* in TI and am doing something totally different on my PC. I then reconnect the external drive, get into TI, and re-verify the backup. Then it's OK, TI likes that. Why do I get these messages? Cannot figure out what is happening. Thanks for any help. PS - this has been going on for several past versions of TI, not just 2018.