Dropped 5 ranks from 1 game?

Is this intended? Took me 6-7 game of constant winning from rank 5 to get to rank 10, no losses. Then I lose 1 game at level 10 and suddenly I drop down to 5? What?

The ranking system is broken at the moment. Some people lose a few levels as you did and others get completely reset back to 1 (this happened to me). As far as I have heard, they plan on resetting all ranks once they fix matchmaking.

I just dropped from Rank 10 to 1. Do you know if they said it’s still broken?

Dropped 15 ranks in one game, twice
dropped 3 ranks in a game
dropped 10ranks in one game, at least twice