First bug.

The door inside the chapel that requires the lever to open. Initially closed it. The enemies broke it then I mopped up. Went into chapel further, but when I came back door was back. Untargetable and HP wasn't appearing. I couldn't break it nor could I use the lever to open it anymore.

I assume the cause was the door being broken, then leaving and re-entering the area.

Second bug.
During the goblin camp, there is the goblin standing boasting. Once I initiate the first fight, it goes to dialogue after getting him low enough. Just before I dropped him low enough, Gale actually was in a downed state.
However I decided to push my luck and have another fight with the goblin. Gale majestically rose after the dialogue and is now 0/0hp but he is up and can do all his actions. Even better he takes damage but never dies.
I took an excess of 50 damage total before I decided to reload to actually play the game properly. I realise now I should have perhaps tried to short rest or long rest to see if it would fix it.

Third bug -
I spoke to Mythra(name might be spelt wrong) the priestess of the absolute. But swapping out of conversation then moving my party to plan an assault ended up with me accidentally getting asterion to sneak attack her while I was in dialogue. However, instead of ending dialogue, I had my main character holding an intense standoff with the Goblin boss and Mythra. So the rest of my party just fought all the ads while my main character was still in dialogue. I even attacked Mythra multiple times. Got her to 2hp before ending the dialogue because I wanted my main character to get the final blow(I was also worried it might have borked my game to have the dialogue target just die during dialogue)

That sums up the key bugs I had in-game.

I had some weird small bugs
Turn base not activating- tried to activate out of combat while someone was downed to give myself more real time to react
Party members leashing to selected character after combat, even as far as to go through acid I had just thrown down.
I had an intese mixup with Volo assisting me with my ocular problem. The player model went to sleep a few dialogues options early, and when He brought me up after "helping" me, the player character was embedded within volo.