its royal rendering nissan gtr r34 mod thats causing the problem i have the same problem and when i deleted the mod the problem is gone
Put mods in another Folder ( so they not in game ) clean cache, If that does not do the Trick. Go into Steam ( user folder of beamng ) find Vehicles and DELETE The ETK-K series. Then check the game integrity on stream. Witch will REDOWNLOAD the K series. from this it Should work. if it does not am so sorry to say i wont be able to help after that, Does the 800-series work? with any issues? Happy beamng. and i hope you can enjoy the K-series in all its awesome Glory soon