Hello, after some searching I haven't found an answer to this. Many of my meshes are being stretched, so to speak. Some stretch out to infinity it seems, while others stretch out into long, thin spikes. It happens on actors, statics, and LOD.

If anybody knows what may be causing this, please let me know.

It sounds as if you've the same issue that was discussed http://www.gamesas.com/index.php?/topic/1087580-need-a-little-help/

Yes that does appear similar, but I've tried the swap with Bash, and for me it's happening on all kinds of meshes.

Is your video card overheating? That would result in a ton of graphic artifacts as well.