Is anybody else also having the issue where they are unable to hide tags for unsolved problems? I uncheck the checkbox in the problemset tab but after some time has passed or after I have refreshed the page, the change is reverted and the tags are visible once again. This has been happening to me for more than a week now.

MikeMirzayanov, can you look into this?

Thanks!

UPD — The bug has not been fixed yet.