If you don't like how I drive, then stay off the sidewalk!
- ʟ₳ẔӬЯ
Yeah it's supposed to do that, that's the "proper" way for it to crash. It most commonly means you don't have tags necessary to open the scenario, but sometimes it is due to an exception (which is very bad news, often means there is an irreversible problem). Anyway, open "debug.txt" in the Custom Edition root folder. Scroll to the latest entry after having it close on you, and it should tell you the problem.