I had a few problems with the Goblin hideout.

1. The enemies are so tightly packed that moving about (me or them) alerts enemies in another room, and the game has to stop to load in the new fighters, sometimes soft-crashing as a result, and often resulting in actions taken not registering as my character walks into sight of an enemy not in combat (resulting in no attack, but the action consumed once the game finishes loading).
2. At one point, my custom character couldn't take any actions; attacks did not register, actions were not consumed, and when I tried to move them anywhere, they teleported back to where they were at the start or the turn once I finished it. Had to skip their turn each time in order to progress.
3. The Bear is busted. His spells don't work and he can somehow follow me up ladders but not use them when I control him.