Spring RTS Engine

When I define teamcolor in the alpha channel, and take it into upsping, those areas are 100% filled with teamcolor, it ignores my texture! How can I also texture teamcolored areas?

You've tried grey tones in the alpha channel yet instead of black/white differences to define the teamcolored areas?

Yes.

Seems it was upspring being buggy, it works ingame, this can be locked

I'm not sure why you want the topic to be actually locked, but sure, whatever you want.