.Map :: MoHAA Mapping

...I made a map for the TR mod. But the problem is that some of my walls, and some parts of the floor are invisible. I checked in Radiant but they do NOT have a caulk texture. They use the same texture as other brushes, but for some reason the other brushes I can see.
Does anyone know how to solve this?

I have seen that too, and it has to do with the angle of the brush or the grid plane it is on. So, changing the angle (slightly) or the location of the missing face on the grid may fix it.

try redrawing the brush.

Ok thanks. That should help.