My Passport for Mac was backing up via Time Machine just fine until a couple days ago. I am not sure if it is due to the recent Mac OS Catalina update or some other issue. Time Machine states “Files can’t be copied onto the backup disk because it is read-only. You may need to repair or erase the disk using Disk Utility. If the disk can’t be repaired, select a different disk for backups. Latest successful backup: September 30, 2020.” Thanks for any insight you can provide.
I have the same issue. Did you get it fixed yet? Please share.
No, not yet unfortunately.