Hi!
Perhaps you have played this scenario.
https://aoe3.heavengames.com/downloads/showfile.php?fileid=3985
When you play it, you start as player red. A solution is to open the scenario in the editor and test as player 1.
However, has anyone found a solution so you can start the scenario in the scenario screen and not getting into the scenario editor?
Edit: fix posted in comments in scenario download page[This message has been edited by Zungen (edited 03-14-2021 @ 12:10 PM).]