7004 error on MacBook Pro after replacing logic board

I had to replace my logic board on my i9 MacBook Pro 16". Afterward, had issues attempting to sync phone and iPad, getting stupid 7004 error. My eventual solution was to change my Apple ID across all devices to a new Apple ID. Sync problem fixed. But when I attempted to sync, finder window was not populating my Music, PDFs, and Photos. We did some preference deletions and that corrected everything except for Music that I own.

66 pieces of music were not copied to my iPhone because not authorized to play it on this Mac. Re-authorized my MacBook. Same error messages. Deleted all authorizations for all of my items, iMac, MacBook, and iPad. Re-authorized my MacBook solo, still, same 66 songs not allowed? Help...

David

[Edited by Moderator]