the map loaded for me but once I tried to save it, it said game could not save and I don't know why.
Viewing post in FS25 Judith Plains, Montana 4X comments
For 4X map, Game save file is 130MB, Seems to only be an issue happening for 4X maps with the Microsoft store version, the steam version or Giants direct install doesn't have this problem. There is a Ticket created in Giants Forum - https://forum.giants-software.com/viewtopic.php?t=213158&sid=a72978717db2be81abe3a1a555026ed6