I've been having issues since Moonrise Towers with tables disappearing so the items look like they're floating, Aylin's armor going invisible, there was one cutscene (with Squire the dog I think) where my Dark Urge's lower half disappeared, Karlach's head was floating in mid-air and Gale vanished except for his weapon...
My understanding is that these issues only really affect save files made before a new patch. I don't know why patches break pre-existing save files so badly, but it's been an issue with every patch, and it seems to only be getting worse. My save file is 4 months old because I have had to take a lot of breaks from the game due to life and also game-breaking bugs... I'm wondering if i should just abandon it at 106 hours, if every patch will make things worse.
