Creating a custom map, I found upon unpausing that suddenly the screen was covered in white lines. I had previously run the map to build several ships, before resetting the time and proceeding to create the map. After unpausing later, the lines appeared, rendering it virtually unplayable.
You messed up with some of the settings for particles (emitter). I don't exactly remember name of the setting, but it's value should be between 0 and 1. Anything higher than that causes what's on your screenshot.
It's the "bond strength" or "bond stiffness" something like that. You can go in the 1-1.9999 to make some interesting effects. But going higher than 2 messes everything up. You can also go in the <0 range, but that's just nuclear. Best to stay between 0-1 :)
He unlocked the secret white particle line disco feature. Lucky you! Does it come with music?