More map change problems

[Venom Fox]

I made a thread similar to this a while back, but I didn't get this solved. I really want to
mod Soma, and this is so infuriating. Instead of trying to explain EVERYTHING, I made a quick video about it : https://www.youtube.com/watch?v=Y9yzGEeG...e=youtu.be

As you can see, the next map is invisible. However, when loading that very same map in the debug mode, it's visible and everything is ok. But when I go through the level door, that happens.

So, I have a folder named Mourn Us in the Mods folder in the Soma folder. Inside
that folder are the usual, config, Maps, Script, Entry.hpc and resources.cfg, so there shouldn't be a problem with that, right?

I have set the door lead to the next map in the level editor, obviously.

As far as I know, it should work. Plus I'd like to know if I'm the only one having this problem. I can't be.. right?!