I have similar problem. I have part, it\'s command pod, 24 verticles, radius 30cm, depth 22cm. When I put it to the 'parts' and after I launch game, i have this (bad) result: // --- node definitions --- node_stack_top = 0.0, 0.1255, 0.0, 0.0, 1.0, 0.0, 0 node_stack_bottom = 0.0, -0.125, 0.0, 0.0, 1.0, 0.0, 0 Is there somebody who can help me, please?