I've just given up on puzzles for this week. I missed several puzzles and my score dropped, but when I got the next several right, my score remained the same. My understanding is that there is a puzzle tournament going on this week, and the usual puzzle functions are all screwed up. Well, maybe it's appropriate for a chess site to require patience.
Puzzle data not updating

I did puzzles three of the past four days, but the graphs do not show my progress.
Staff have a ticket in on that.

The servers are just messed up since 1,5 week. Unreliable website, nothing new here unfortunately.
Good thing we have cat bots to play against. Way more important.

I also submitted a ticket. I was not sure support understood the issue but the above graph shows it well.

Last graph update 11 days ago. I’ve done more than 400 puzzles since creating this thread. C’mon chessdotcom developers, please get the site back to functionality.
I did puzzles three of the past four days, but the graphs do not show my progress.