Hi,
I'm using NetRadiant to build a Doom 3 map project, and getting acquainted with the peculiarities of the engine. I'd like to use DarkRadiant since that seems to be better suited to Doom 3, but that keeps crashing for me on startup.
I'm running into a problem where certain brushes are only rendered partially in-game. They look fine in the editor.
This is a simple staircase hall:

Here's what it looks like in-game; aesthetics aside, it looks okay, except:

That doesn't look right. The corner platforms aren't rendered fully.

The other ones have it too.
So what causes this problem?
I've set the outside walls to structural and everything else to detail brushes, and I normally set the caulk texture on every surface that is not visible in-game, but I've tried replacing all caulk textures with normal ones, which doesn't make any difference.
It's not a lighting issue either.
I simply save the map in the editor, and then use the dmap command in dhewm3 to compile the map. I haven't looked into visportals and such yet.