Good morning,
I posted something similar yesterday and didn't get a reply. Maybe I didn't explain the issue correctly, so I am trying again.
I have two fields that work together.
The "Device Type" Field and the "Model Field"
The Model No field on the form is a cascading dropdown field that gets its information from the "Models" list.
There are two columns in the list Title and Device Type. Below is what I am using in the Items property for the Model No field.
Filter(Model,'Device Type'= DataCardValue33.Selected.Result)
This works well for a new form but when I open an edit form it shows all the available choices, but it should show/highlight the choice I originally made in the new form, but it doesn't.
I hope this is clearer.