v1.502

Other small and quick update.

I've been reported that Hellrot's aircraft didn't appear automatically in the game unless you use the "cheat" in the challenge mode This update fixes that. Besides that, now workshop's custom aircraft can be placed in the mission editor without any problem.

And one last change, in this update it also has been fixed what was causing a crash in the J-35D and Mod 4 challenges.

I'll continue to keep an eye for any other issue that may pop up in the workshop, but let me know if you find one yourself.