Okay. So. I've been making this GIANT city map and finally got it finished. I exported it, but the .mat files for all the buildings cannot be found in game. It says the actual object/group has been exported, but just not the material files. I don't exactly want all of the buildings to be white... I've made plenty maps and shared them before, but this time it's just not working... Should I put the material files somewhere else...? What should I do?