I can confirm that it is affecting the cross save.
I started earlier today on a ps5 save on my pc. updated Pixellbytes partysize and Tactichian addons. Played for a couple of hours.

Went to my TV av started up the ps5...BAM, not the same version on the mods, no chanse to load my saves untill the new version is available...

This is so bad that I seriously thinking of quitting and go back to wow. It's ALLWAYS some of the mods that differs in the versions between pc and console and wont load.

Really bad design of the game and mods. ONLY way to be safe and guaranteed to be able to play when you want is without mods, and that imo sucks.