So I'm still editing a few of the final maps of the custom story and I'm experiencing a slight problem. I tried playing through the entire map up to where I left off for fun, but when I went through a level door after the first map, it closes without any message or loading screen, or even a "something is wroooooooong", it just closes.
The map in which you start is 5 megabytes and the one to which the level editor transports you is 4. I don't know if that's got anything to do with it, but if somebody knows what's going on, please tell me. I'm going to continue looking for the problem myself.
The pictures and video are still there so if you have any suggestions for improvements. They may be a pain to fix but it'll be worth it :)
(edit) Nevermind :P