User login fails after moving /home
At this point, due to the copy vs rsync (I am not familiar with the direct copy of the personal folder.) I would say that if the uuid is correct in fstab to mount the desired partition in / home, change the name of your user folder Jim in jim.bk, then deluser Jim followed by adding user Jim and then see if you can log in. If you can, copy the jim.bk files of your choice into Jim's new user folder. If the problem persists, simply delete the new Jim user folder and rename jim.bk to jim.
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Once I receive this information from you, I’ll be happy to review it and offer additional assistance based on your setup! - PIA CS TEAM