Hey dude, Don't know if its sorted yet but I will give you a whole thing of what I do. . . 1) Build your terrain. 2) Build Pathing and Build all. 3) Go to Art Manager. 4) Right click on all .wrl and .tga files (There should be 1 WRL) and create asset. 5) Build the whole mod or hit F7. Any more help? Contact me again.