Is it only this map that doesn't work? If so, I didn't do anything special with this particular map. These maps have also been updated since Jayborino and I played them, so I don't know if that is an issue or not.
Have you tried playing the map through the editor?
No i didint but earlier today i did managed to get access to the levels i was trying to get into.
I went through the loomings campaign from start to finish and i found that the levels are labeled wrong. I have to select mission 3 for mission 4. To access mission 5, i must beat mission 4 instead of accessing it via the menu selection screen. Im not sure why the mod is worked like this for the prolouge. I hope its not the same case for the rest of the game.