I found out where I triggered it: The sirens that try to lure you with a song, in the secluded cove near the druid camp. I've let my characters get mesmerized by the song. and somehow the dialogue with Micron got stuck.
Trying to recreate the situation, I noticed that there are plenty of buggy cases with micron conversation initiation, some resulting in an entirely black screen, while the ui is still responsive (pressing 1,2 activates skills). [Got this result by going near Mikron, ignoring him and trying to jump towards the other bank.]
I reproduced getting characters stuck in conversation by trying to circumvent micron from the south. Chars that are climbing the knotted roots when the harpy/micron start the conversation, dont get into the combat and just get stuck.
Last edited by Tottenheim; 16/02/22 04:37 PM.