RE: Corruption. At work I helped track down a race condition between threads that were updating/rendering the same entity at the same time. It manifested as our archer's bowstring triangles (and nothing else) stretching to 0,0,0 every few frames (which looked to me like bad hardware or an index buff...

I can confirm I have this happen quite frequently when I am tweaking rails (usually when I'm removing rails without changing the signal placement). Removing the signals and placing them in the same spots seems to fix the problem until I start tweaking the rails again. If it helps, all of my rails wi...