When I built my map using a test map in preview mode, very frequently, I get a message saying "engine malfunction: nexus too small", and sometimes "engine malfunction: polygon buffer". I get it about twice a minute while moving around. What do these two errors mean? What's "nexus"? What's a "buffer"? I use A4 standard if you need that information. Not sure what else you need.

The nexus (in MB) is the amount of memory the game needs. At default it is 30MB, you can change it -> Map Properties -> Nexus.

MfG,
Darth Felix

Hmm. This malfunction thing only occurs when I have a lot of blocks that are to be displayed in the direction I'm facing. Especially caused by viewing toward the fence or looking to the other corner of the map [as if the draw distance is infinite].