I had played a 1x1 ranked match and left the results screen open to get some tea. This occured at 20:30 EET (GMT +2)

Some five minutes in I hear a game starting, I rush to the computer thinking "did I start looking for a game and just walk away?!"

Turns out I have somehow become a spectator of Veivi vs Mitrofan game (Veivi's being super gracious and giving tips, love the guy, not like blackmagic, who's an a**hole)

If I type a message it appears in the message history as if typed by Veivi, but the players do not seem to see my messages.

Also, the buildings and HQs are in holes in the ground, not "on" the hex.

Here's a screen: 

And I can not exit the game, ESC menu shows resume and concede, pressing concede does nothing.