Possible Match History bug?

I was playing a ranked game as Janna which we ended up winning but after when I wanted to check it out in my match history, it wasn't there. I went to the op.gg to check if it's shown there but it's missing. When i go to Profile>Ranked it says that I have 628 wins and on op.gg it states that I have 627 which means 1 win is missing in my match history.

Has anyone else encountered this problem?