3ds Max 2020.2 SDK functionality

hey, i run 3dsmax 2020.2, the sdk installs fine but especially the FlightSim Material (as well as other functionality) gives me errors:


the material is also white and upon launching the material editor, max crashes.
(this is with the example plane)

in my own projects i cant even seem to find the material…
any idea of how to fix this?
thanks
ben

I sometimes also get the -unknown propery error, but so far I just ignored it. All 3D models I exported work fine in game.
I can open the plane just fine without the error. I got 3ds max 2020.3 installed, maybe the update will fix this?
Or try to reinstall the plugin.

tried all that, no avail :frowning:

SORRY, clarification, im running 3ds max 20>21<.2… any ideas?