[Dev tools related] Devmoe fails to display map?

Devmode fails to display the map when you press tab when it's too big.
It just displays a white square in the center of the screen, for instance, CEZ1.



The problem seems related to big maps, as it suceed to display the map in levels such as THZ2 and GFZ2.

http://wiki.srb2.org/wiki/BLOCKMAPIf the map doesn't have a BLOCKMAP lump, automap won't display anything. Several levels lack this lump, but I don't remember which ones.

That happens when you have maps too large for a normal nodesbuilder to generate a BLOCKMAP lump, where the game has to generate a blockmap for the map itself. I'm talking maps like DSZ2, ERZ2, AGZ, but probably some smaller maps fit in this group as well?