Tenant dropdown bug [Alpine issue]

Trying to set up multi tenancy for the first time, and when I click the tenant dropdown I get:

Cannot read properties of undefined reading ('toggle')

Cannot read properties of undefined reading ('toggle')

Looking at the alpine code for the button I see this in the

toggle()

toggle()

function:

toggle: function (event) {
            $refs.panel.toggle(event)
        },

toggle: function (event) {
            $refs.panel.toggle(event)
        },

I'm assuming $refs.panel is undefined. Not sure what isn't configured correctly.

Appreciate any help