Map Editor Stopped Working again....

I am gonna explain my situation.

I fixed all 10 maps, then changed to Modder's build of the game to do the MapPreviews. after i did all the maps I went back to the original build. opened the game and went to open the map editor and Voila! it crashed on me...… ohh God please don't tell me that I have to wait another 3-4 months to get the map editor to work again....
what's going on with this game? Come on Dev's after all those years why we still have a bugged map Editor?.