I have changed the USA mission 1 to a skirmish map by removing all waypoints and poligons (except water), removing all scripts and adding player start points perimeters... When I start the game, AI works as expected, starts to build buildings but after some time (45-60 Sec.) game crashes and errors technical difficulties. It doesn't happen in other custom maps that i have downloaded or official maps. Does anyone have an idea what should I do?

can you sent the map here pls

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can you sent the map here pls

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https://drive.google.com/open?id=1eFxg-P2Q_US8w_4EkRJu40Fej3aVhnn_ 
Also did the same thing in usa08 mission and it crashed as well.

the map had units without any teams and make the map bugged ...

removed those units or manually fixed them with "fix teams" features on tools tab under "validation"

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