DISK NOT EJECTED PROPERLY keeps popping up Big Sur 11.3.1 After updating to Big Sur 11.3.1 my MacBook Pro 2013 keeps ejecting my 2TB Seagate external drive. As a result, I'm not able to back up using Time Machine. Would be happy to get support for this issue. App & System Services Core OS macOS USBDriverKit Mac 71 4 49k May ’21