Just as the title says. When my Mac (2017 MBP Mojave 10.14.5) goes to sleep, after waking up the drive is still mounted and shows used space, but all of the folders appear empty and I cant view internal files inside of folders.
Contacted support and was told this “may be normal behavior” “based on varying operating systems”
Tried 3 different USB cables. 3 Different computers.
Drive is about a year old and has been flawless up until about 2 weeks ago. No operating or hardware system changes.
Sleep timer is off, and “put hard drives to sleep” is unchecked in MacOS Settings.
Drive passes Status check, Quick Drive Test, and Complete Drive Test.
Same problem here with a My Book 8TB. I have a My Passport 4TB working fine but when I connect the MyBook both shoes empty on finder. Time machine partition fails to perform backup and I must disconnect the cable or reboot to make the content appear again. If I disconnect the My Book the My Passport continues to work just fine
After reading so many posts with the exact same issue I’m going tu return the My Book.
My problem was similar, in that after waking from Sleep mode my Mac displayed multiple images (3 in fact) of both volumes on my MyBook Duo. I couldn’t eject them, TimeMachine backup sessions failed, and the only way to shut the Mac down was to force it to shutdown using the On/Off button at the back of the machine. Didn’t happen when the Mac went to sleep itself, only when I used AppleMenu/Sleep.
