Current questions and answers regarding the map editor.

Problem: when creating campaigns... the maps aren't recognized... before, I saw 3 out of 7 maps...
Let's say these maps are "a", "b", and "c".
So, I open the maps, and I have a list of maps "a", "b", and "c".
Then, in map "a", I noticed a flaw and decided to fix it... I opened the editor, opened the map, fixed it, saved it, and then I noticed that I now have only TWO MAPS to choose from... maps "b" and "c"...
Then, just out of curiosity, I added an object to map "b"... saved it... and it also disappeared from the list... only map "c" remained... I changed it, and it disappeared too... now there's just a blank space...
I remember that I'm not the only one with this problem...
If needed, I can send photos.