New internal props fail to load ingame in Modelling and Texturing Discussion Posted December 13, 2016 https://www.dropbox.com/s/wrloa6dq7bowf9j/InternalProps.zip?dl=0 try the RFNavBall prop in there see if it helps, it's part of the RFProps unitypackage. It's been a long while since I touched anything KSP things are very fuzzy. But if you know exactly how the visible mesh is flipped, it should be simple matter of flipping the mesh in blender without changing the pivot orientation to fix it in KSP. Blender (and Max) compounds the problem as well by having Z up instead of Y up like KSP/Unity. I don't know anything about the new config entries though... last I made any props was 0.9.