[bug] training rating stuck, the same exercices every time

I'm playing training on ios, and my rating stucked at 1580. I'm receiving the same (like totally near 10 different) puzzles, and rating doesn't change on win/loss. It was an issue for a few days.

I'm started training in browser - now rating changes.

The same again. Rating increased to 1650 on websites.
But It doesn't change while training on iOS. The same puzzles every time and no rating changes.

The same thing here!