Verify Permissions
diskutil verifyPermissions /
Repair Permissions
diskutil repairPermissions /
exFAT support on macOS seems to have some bugs because my external drives with exFAT formatting will randomly get corrupted.
Disk Utility is unable to repair this at first, but the fix is this:
diskutil list
to find the right drive id.disk1s1
sudo fsck_exfat -d <id from above>
. eg sudo fsck_exfat -d disk1s3
-d
is debug so you'll see all your files output as they're processed.YES
if it gives you the prompt Main boot region needs to be updated. Yes/No?