Hyper key doesn't work (just enables/disables caps lock)

I just saw on Brett Terpstra's site that BTT supports capslock as a hyper key. Hooray!

Unfortunately, I cannot seem to get it to work. I've tried mapping capslock as a hyper key but all I get when I press capslock is the original capslock function.

I'm trying to trigger a Keyboard Maestro macro and set the ones that uses hyperkeys to "on release" instead of "on press" but nothing works.

Does anyone have any troubleshooting steps or things I can check to get this working?

does it work with shortcuts defined in BTT?

It doesn't, sadly. Here's what I have set up: CleanShot 2021-02-12 at 14.26.53 ยท CleanShot Cloud

Neither of those keyboard shortcuts work.

That said, even holding down the hyper keys separately doesn't seem to work - the shift+control+option+command+5 keyboard shortcut doesn't open the finder. Can I send you any troubleshooting details?