A bug in the game?

[Black Cobra]

What is illegal?
if you mean a player appearing with a warning on him, i can confirm that was not the case.
For the MC i have two of them in my formation (the second screen is from a match i've seen, not my team)

Well in that case in the second screen MANU FC is playing an illegal formation which is why he only has 20% possesion. Please post your formation for your match.