Have I finished all chess puzzles?

Hi there, so weird thing just happend, where I was playing tactical puzzles and at one moment I was getting really low tier puzzles and they were "earning" me +1 or +2 and after five of them my history of statistics went blank (both graph and the bar) and I am staring fresh. Is this something normal? Did I just finnished the database of puzzles or what just happend? Thanks.

What's the numbers of your puzzles?

Something is changing with the puzzle system. Go to lichess.dev for more puzzles.

they have just changed the puzzles, so I expect the reset was caused by them preparing for the transition. I consider this solved