MacOS 12.2.1 Time Machine backups fail to external APFS drive; readonly permission.
Time Machine backup fails; error message is "Backup Not Completed Time Machine could not back up to MyBook 4" (my new APFS formatted WD external drive). The drive was formatted using Disk Utility and then selected in Time Machine. Time Machine said it was doing backups for several weeks, but all backups were empty. Permissions seem to be set to read only. 27" iMac 2020.
iMac Pro