Before I start a rant on how the update of the vehicle/part selection has been broken. I would like to ask how to load pre saved vehicle data. i.e DS metal cube, in its jbeam it has 3 different weights to chose but in game it only gives one to chose or another would be DS spinning weight, again jbeam says there is a 2 weight besides the 4 weight, but the game only lets me pick the 4 weight. I also have this problem with cars also. the moonhawk file has a couple preset saves but i can only load the basic. I have uninstalled the game completely done fresh install no mods and it still does this. plus i can no longer save builds i do so i just load them. on top of that the parts selector now when you remove something then change a different part it puts the part you just removed back on.
I got it to work. My own mod I have been working on was the cause. but the parts selection still bugged untill the next update.