if this error happen all repeatly triggers in the mission will be deactivated, fires up the deactivation-code and don't work anymore. This will stop all repeatly triggers on map.
This issue will happen if player is green and shoot down friendly blues, or player is blue and shoot down some friendly greens.
unable to design a mission with green faction and blue player, if green is friendly to bluefor.
This issue don't show up if the green is friendly to nobody. {F21255}