About a year or 2 ago I created a map in Galaxy forge based on Frank Herbert's Dune series.  I added dozens of plants and suns and added the correct amount of players.  Yet when I finally added the game to SINS only 4 of my planets load and it only allows 2 players not 3.  Also my map discription doesn't appear it only describes it as a custom map.  Did I miss something very important?

Please note I am not a very good modder or anything like that and thinking that the map creator seemed simple jumped straight in.