The galaxy forge work fine, is a stupid bug. Listen.
1) Open galaxy forge
2) Save the galaxy
3) Close the galaxy forge
4) Open galaxy forge and charge the galaxy that was saved
5) Now you have no more problems to load any type of map, after load the first save galaxy, you can load any map without crashes in my case .
i test it two times. One in my PC (here i discovered the problem and "fix it")
Two, in my G74SX, tried to charge a map and get crash. But save first galaxy, load, and after load any types of maps without problem.
And when you create a map, and play it CLOSE THE GALAXY FORGE BECAUSE it get this error, and cannot recover the map
I hope this will help a lot for now until fix the problem.
And to add to my displeasure now my rebellion game crashes/freezes when i attempt to switch to the galaxy forge tab when starting a new game: Runtime error.
I fix that deleting all maps and paste again, but no pasting the map with error.
Sorry for my english