Message saying "i must own a champion in order to.." and i have the champion

I played a regular Classic 5vs5 we win and in the "end game details" it said that "You must own the champion to earn its mastery chest or key fragments", well it happens that i have the champion i played with ;)

End Game Image 1 I think it probably means i didn't win anything. At this point i need to score S+ to advance a LvL on , so i know that it didn't count for Leveing up. Inspite of this, and if thats the case (didn't win a chest nor a key fragment) the msg should be changed, so that it doesn't indicate that i do not have the champion when i do. This is not the 1st time it happend! 1st time i didn't capture a img so i waited for next time. Hope it helped :)