Question: Time machine unmounts
My time machine ejects (unmounts) every Sunday all without any action from me. I get an error message about it ejecting incorrectly. To remount it I have to disconnect it from the mini, then plug it in again, then go to Time Machine in Sys Preferences and select it.
I checked every Sys Preference and could not detect any scheduled event for this.
Mac mini, macOS High Sierra (10.13.3)