For my current project you build a mine on top of ore to begin mining it similiar to the way the undead mine in regular warcraft. I couldn't find good graphics so using warcraft viewer to find and export the goldmine i then removed the geosets i didnt want with warcraft 3 model editor while it was still an mdx. then i imported it into my map and closed and reopened the editor. then when i assigned the model to my unit in the object editor it crashed. is there a problem with the tools im using or did i skip a necessary step?