So I was making some custom skins and test them how they look in game. I made nice skin showdown mission and one day it stop working. I can add other planes and fully modify them, but I cant add M2000c of any nation. It breaks game as i get stuck in Mission editor and can't leave it unless I force close the game. If i put other plane and then change it to m2k then working unit becomes broken (cant change anything, cant modify waypoints, armament, skin etc) and stays broken unless I change it back to any other plane again. I set model viewer so that it opens with m2k and my skin preset, but now it doesnt work. M2k model fails to load at all and I need to use other model file for it. Thats why I presume thats the source of problems. Also it seems like there is bug with cluster bomb as it seem to use older model with no pylons.
Of course all of it could be caused by me, when i was making skins, but it did work before and I wasnt working with models files... I dont think custom skin affects model of BLG66...
EDIT : Ok it seems like it was me who screw up. Apparently DCS doesn't like zip files in liveries folder. Mission editor works now. But BLG66 not, and cluster bombs work in 2.0 Nevada, so i presume i mess up a file somewhere... I have no idea where though... and yes I did run repair on cmd
EDIT : Ok BLG66 works, needed to redo the loadouts from scratch