I’m blocking probably hundreds of mags (all mags on Cloudflare sites like lemmy.world). The results of search queries are rich in posts from blocked mags. When I visit the post the sidebar shows that indeed that mag is blocked.

Note that if I simply browse the main timeline, the blocks work as expected.

I would normally report this to the kbin bug tracker but Codeberg deleted my account and it’s hard to create a new one.