Is #+filetags currently working?

[KodyVB]

I am new to orgmode so I don't know if I'm just having the wrong expectations, but I'm not sure if #+filetags is currently working. In an org file with multiple headings, I added: #+filetags: :test: and then used <leader>oam to match tags, then searched for test. None of the headings in that file showed up, but individual headings with their own :test: tags did.

Am I doing something wrong? I went into my config and made sure org_use_tag_inheritance and org_use_property_inheritance were both set to true, and it still didn't work.

[KodyVB]

I've since tried adding the same #+filetags: :test: line to all 18 files in my org_agenda_files (set to ~/Documents/Orgfiles/**/*) and it seems to work for 3 of the files when I match for test.

If I match :test: instead of test, all of them appear, except only those 3 files' headings have the expected :test: showing up on the right hand side of the results pane.