RTF is a global modification that replaces all towns in the game.

Let me check... so, is it possible that the editor simply merges nearby points? Points that are very close to each other? Well, not merges, but collapses them?

Added 5 minutes later
Phew, I don't have that button on my panel; maybe it needs to be configured somehow. Okay, forget about this editor. Can you get the final file from Maya before loading it into the editor?