I did battle witth the hag in her hut, got her down to I think 27hp before she ran away, and then killed all the red caps. Then for some reason I couldn't get into her lair as my main character. I everytime I clicked the basement the screen would go black like normal for a level transition, but when the screen clears I'd still be in the same spot. I switched to Shadowheart and clicked on the basement and was able to progress. Then as I was walking around Astarion is forced into auto dialogue with the door illusion at the same time I was going to talk to the elf (the automatic dialogue picking people I don't want it to is still one of the worst aspects of the game, and I hope a fix is in the works to address this). I finish the dialouge, and then switch to Astarian and more bizarre things start happening. the cutscene takes place in like below the floor, and things are transparent (it's a bit difficult to describe), Astrian passes the arcana passive perception to notice the door can be walked through, and then I select the *leave*, because I obviously don't want to do this conversation with anyone that isn't my lead. After the dialogue ends I'm in a black void and there is no U.I of any kind. I couldn't even reload at this point.
