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ArmA 3 Terrain Builder, ArmA 3 Terrain Builder Support Forum

My Terrain Builder mapframes → processing → rebuild terrain, button is grayed out what can I do!?

If terrain builder wont let you rebuild terrain (button grayed out), then go to mapframes → samplers → satellite/surface (mask) tiles, and change it to something else, then you can rebuild terrain again. Don't forget to switch tiles size back to the proper size after rebuilding terrain.