Its a bug?

Just today i turn on the game and i found i lost all my rango… :o
I was killer, and now i play go to bronze.
Its normal? Its a bug? Happend something that i dont know?
Ps: sorry for my english is no my native lenguaje

It’s a rare bug. Happened to me a few times last year. Once I got back to killer (within a few matches) all of my killer stats were preserved.

Yes its strange bug…i no worry a lot because its easy back to killer again.
Just few matches as You said…
Now i fell as smurf player XDXD
Anyway i hope then fix for s3