PCB layout out of sync with strange "symbol association"

First, welcome to KiCad, (and this forum) :slight_smile:
I tinkered a bit with your screenshot:

Those Updated messages with the UUID’s are informal. Errors and warnings start with Error: and Warning:, and they are probably higher on the list. Scroll upwards, or save the ERC report in a file and paste the text here.

This forum software also has some automated anti-spam measures in which rights are gradually granted as you gain more “experience” on this forum. More details in:

Also posted on:
https://www.eevblog.com/forum/kicad/pcb-layout-out-of-sync-with-strange-symbol-association/