I can still see the back side of it on the tempbrick, but when I look at the front side on the tempbrick or a planted brick, it's just missing. If the brick is destroyed it temporarily reappears.
The quad in question:
------------------ East quads:
1
TEX:TOP
POSITION:
2 1 1.5
2 1 -1.5
2 -1 -1.5
2 -1 1.5
UV COORDS:
0.5 0.5
0.5 0.5
0.5 0.5
0.5 0.5
NORMALS:
1 0 0
1 0 0
1 0 0
1 0 0I'm pretty sure that's the only quad involved, because removing it doesn't make the problem occur for another quad and removing the quads above it doesn't solve the problem either.
...but here's the full file for those of you who need or want it (quote this post):
I'm very confuzzled.