This isn't something that needs to be reproduced as many people experience it all at once, and I think it can be simply fixed. Anyway, when someone lands the last hit on the big crystal in the enemy base, it brings up the results screen, but if within a few seconds of that, someone destroys a building or hero, the message saying that they did so will stay frozen over top of the results screen. This makes it usually impossible for the person at the top of the results window to see how they did. I'm not sure if this problem has been reported already, so I'm just making sure.

Thank you,
zybst