[Jourin]

It may not just be the custom map, but a combination of factors. I can play the game with a custom map and save and reload with no problems, and then I do something that causes the save game to crash.

I think one of those somethings is scrapping a facility on the first turn and building a different facility that what was present a the start. This is the only something I have been able to consistently duplicate.

But I have also played games where I do not do that and still get the error I just can't isolate what caused it, because the something could occur at turn 10 and you could play to turn 35 before you save and reload and get the error.