The bug is simple, has a clear approved way to fix, is over 6 months old.

Will it be fixed on http://manifold.markets by the morning of November 6, 2024?

The way filters on the site has been broken since at least may 2023

first report of this being made to not work is in March 2023. I think it worked the way I expected for some time after this before again stopping working.

Full details and discussion of why it's a bug, what to do etc.
https://discord.com/channels/915138780216823849/1275206314754183311