Gallery Default property type/format?

[bdc604]

Even when clearing the collection, I cannot get Powerapps to select the first Gallery item in a custom view form by default when closing the view form and selecting a different list item. It fires once, the very first time, then nothing when I go to other list items.

Gallery1.Default = First(Collection1)

I tried Screen1.OnHidden = Clear(Collection1) but that didn’t help.

Any suggestions? Perhaps in SP vs stand-alone apps the custom form is never truly hidden, just collapsed out of view, and OnHidden doesn’t get triggered properly?

Whats the point of a Default property if you need to wire up a button to set it? In tha case I would just manually select the first item...