If the map was created in Galaxy Forge most likliy what the problyem is one if the players does not have a starting point/planet.
To fix:
1. Open GalFor and load, desired map.
2. Click on Edit, then Players, and make sure you have as many as you want for the map.
3. Look over created map to makes sure desired number of players have starting planets.
4. If number of players not equal to starting planets; click on a desired planet to choose as starting planet.
5. In toolbox for selected planet make sure that in "Ownership":
A."IsHomePlanet", the value is true.
B. "Owner" is a remaining player that does not have a starting planet.
Hope and glad to help.
Tanith Fisrt and Only