In our club, we would like to use lichess as a training platform for solving puzzles. It would be great to watch our players' progress, however - after viewing one's profile and clicking on "Puzzles", we are always directed only to our own puzzle statistics.
We would appreciate if you could fix this bug.
It's not a bug, it's always been like this.
Go into "Privacy" preferences, you can allow your friends or everyone to see your statistics "Share your chess insights data". By default only your friends can see your statistics, their students must add them to their "With friends" list. If they can't see their friends' stats it's because they have set their privacy to "With nobody" , tell your students to allow their friends to see their stats by changing the Privacy option to "Share your chess insights data "- "With Friends" or if you don't mind "With everybody".
if you are a teacher, you can add your students under "Lichess classes" feature from which you can track your students progress, eg puzzle progress