[BUG] Cerys won´t talk in "Possession" [Spoiler]

[Hamthaak]

Hi Everyone,

I hope somebody can help me out. I´m playing the quest "Possession", decided to trick the demon. I enter the haunted house, have the little cut-scene where I see Ciri and look at all the red-glooming objects with witcher-senses.

Now Cerys calls me and the questmarker jumps to her position. But when I go to her I can´t interact. I tried reloading, restarting the game, fast-travel (even dropped a bomb on her! lol)

I played this quest before in my first playthrough and all worked fine. Any idea whats wrong?

Thanksj in advance.