Can somebody figure out why the lower staff isn't being hidden as I've "requested"?

I don’t see any hidden objects, I’ve set things like so:

and yet I still get this (see attached Dorico file):
SnugsFavoriteGames - (491 KB)
Thanks for any help!

  • D.D.

You have an explicit treble clef at the start of the bottom stave. Select and delete it.

That was it! (thanks!)

  • D.D.