This is something i have not encountered before, perhaps i have accidentally messed with something. Starting just a couple days ago, every time i create a new particle system or select an existing one the editor grinds to almost a complete halt until I deselect the system. This effect doesn't happen when selecting a parent with a child particle system, only the system itself. It is making it impossible to create and edit particle systems, which really sucks. As a side note, existing particle systems work perfectly in game, and the lag effect happens even when the particle system is not emitting any particles. I'm getting desperate at this point, any help would be greatly appreciated!