[2021] Bugs in Act 5? Can someone tell me if this is bug or am I missing something? (spoilers)

I'm on Angel path in act V and I encoutered two things I would consider bugs.

1. Regil quest when you have to go to Hellknight camp. I went there, was surrounded by hellknights but I can't talk to any of them, just don't have the option, they are just standing there.

2. And the bigger one - after meeting Mutasafen in Pulura's Fall, he escaped to his laboratory. I went there, obliterated guards, rescued Targona. Then I walk into his room - Targona instantly just dies, and Mutasafen tells me, that no matter I do I can't kill him. He is not hostile, has green marker so I can't even attack him. Just standing there.

I tried to look up on discord, but no one responded. I also tried to seek the guides but ones I found were mostly for acts 1-3. I just don't know if I should report these as bugs or maybe I am just missing something here.