Ranked turned to normal

not sure what happen, may have been user error but here it is...

i played 5 ranked games in a row, got back into my lobby and qued/ played a game, it was(or claimed to be) a normal. all i kept doing is hitting the "play again" button, didn't do anything different from game 2 to game 6, yet game 6 was a normal game. it could have changed after i hit the "play again" button or while i was in que. either way it was disheartening to finally place after 2 games no items and get lp boned.

i have seen a few posts about people not getting lp after a ranked win and wonder if it just changed to normal and they didn't notice...