So far I've only experience the
Spoiler
Staff of Magnus quest bug where the ghosts just stand around and say nothing thoughout the dungeon and it was quite frustrating. I'm not sure if they were supposed to help me defeat Magnus or not, but he was a [censored] to beat by myself.
Also I really hope they fix the random low res textures that show up in the inventory screen. Its very distracting for me.
A few other immersion ruining bugs I want fixed ASAP
When following a quest related NPC and they run off the path for 5-10 seconds only to run all the way back to the path.
When following a quest related NPC and getting to close to them so they stop ask what you want.
When talking/listening to a quest realted NPC and other NPCs start talking to you about something pointless.