I think I can replicate the bug. The game hangs on the attack, where it no longer progresses the turn, but you can still click on things, like the information pages. the bag button opens an empty box, and if its my turn I can flee.
Attacking an enemy with [Ensnared] causes the freeze, and they're showing the enemies with negative evasion, which might be the issue. The [Draw Blood] attack applied the debuff but didn't continue on applying damage
When an enemy attacked me with the [Commander 2] buff it also caused the freeze. removing the armor solved the issue.