Okay, straight to it! I've been making a map to test displacements, so it's not a huge deal, but here are some shots of the editor: And here are those same areas in-game: (I taunted so you could see that the collision for props is also nonexistent) So... yeah. These props don't show up. If it helps, the props in question are the torch from Egypt and the severed tree trunk from... somewhere. But the lack of collision indicates that the game is ignoring them completely. And, just to test, I placed a door prop, and that works fine. The only other props are some fence props which work as intended. IMPORTANT: I have checked the props' info in the model browser, and they are all the classified as the correct prop type. So... that's not the problem. Also, BONUS PROBLEM! This cave is made using pretty much only displacements: In-game, light appears to bleed in through the edges... Any way I can fix this? I'm assuming that displacements can be used to seal the map, BTW. If that's wrong... well, I'm a dingus.