If you go to hidden properties, set chamber pressure to 0, launch the craft, light the engine, and set throttle to anything above 0, it gives a black screen. I made an example craft after finding this bug a week or two ago with a project i’m working on. It’s a big issue for ‘fake’ engines, where you have an engine that produces thrust, but you cover it with a 0 chamber pressure engine to make it look nicer or something.
Edit: oh and it makes it so you can’t recover the craft, because it thinks there aren’t any recovery locations available, so you have to destroy it.