Only giving me low rated puzzles

I am over 2000 rated in puzzles, but recently I have been given low rated puzzles a lot. Is this a glitch or is it a small chance?
Check your settings and change the Difficulty to Hard or Extra Hard

Yeah, the update happened earlier today and certainly could explain why those were the ones you got. It's possible it could take a few puzzles to get the change after updating and saving.
At least it seemed that way to me when I tried
I am over 2000 rated in puzzles, but recently I have been given low rated puzzles a lot. Is this a glitch or is it a small chance?