[5e] Custom items with multiple spells fail to track charges?

I'm making items that have a BUNCH of spells on them (ten or eleven, each). They're supposed to be usable 1/day. I set that up in the options, both the "0/1 used" and "refunds on Long Rest."

The spells are available to be cast, but they're not tracking Uses. This is a very minor thing, but I'd like to know how to make that work. I'm trying to make things work as close to perfectly for my players as possible.

Anyone know how to do that?