Bug or feature in D365FO forms when using composite query
Not sure if this is a bug or a feature but looks like a bug in the D365FO platform. When you pass a composite query into a form using a menu item you can't filter on reference group fields. You get the error "Column is not filterable.". The data still will still displayed correctly, users just can't filter it. Until the issue is resolved, use a simple query per menu item when passing to the form.