Hey, sorry for the late reply, real life is eating time atm we all know...
So, I tested it with nearly all possible thing, no fog, fog, moving over the corner with fog, without fog, so the game crashes with any possibility I created...
Queation: you all said to room limit or so, how can I avoid it? Do I need to clean other areas first to clear the corner out? I could try it, but it's fucking hard with them keep attacking me from the bottom dungeon