p.s. I get a black screen quite often. This happens when some building's heat capacity is exceeded. It seems there is no way to get out of the blackscreen except reloading the game (and losing all progress).
When an item is destroyed due to overheating, the item was still "stuck" in the grid. Thought i fixed it? I'll triple check to make sure no more crashs happen.
I was looking into saving progress yesterday. Will try to implement that today.