I have the latest beta of 1.09. I was trying to make a new custom map and 2 things are going on. First I can't rename the map. So, it is new-1. 2nd is I cant change the number of planets in planet group 4. For instance planet group 4 is min 2 planets max 4. I want to change that to 5 min and 8 max. Does not take keyboard input.
This happened after playing a sins game for a few hours. I was playing single player. It is also odd, that all the fringe suns have 3 planets. The center sun has tons of planets.