Ok, first things first, comment out line 127 of draw.cpp (glEnable(GL_CULL_FACE)) as it causes walls to disappear on new-style zones (fucking sony doesn't organize their vertices properly lol)
Second, it's quite possible I broke placeable objects, and I'm checking into it now. I've been changing the draw code a lot while playing with the octree, so it's _highly_ probable I did something stupid
I'll update you in a moment.