After using Primalist skill Ice Thorns on an enemy the game enters freezing state where it updates game state once per minute or so. Since you need to manually stop the game didn’t find any crash logs to offer.
Steps to repeat:
The Ulatri Cliffs (early in campaign, level 4)
Choose Ice Thorns as your first specialization skill
Put one point in the Ice Prison node
Hit an enemy with Ice Thorns
Game enters freeze state
With above steps I was able to repeat the bug every time while trying to figure what was causing it. I tried unspecializing Ice Thorns and that fixed the game freeze issue for me. Guess I’ll be leveling with some other skill for now.