I am so puzzled.
I have a gallery on one screen and on another page I have a form. The premise is, as standard, that gallery lists the headlines information, linking to a form which can be used to view the whole record, and give the option of editing the record or creating a new one. I have done this numerous time before, hence, why I am baffled.
On the records in the Gallery I have added a formula for
Onselect= ViewForm(Form2);Navigate('Details/EditScreen')
On Form2 I have the following formula
Item = Gallery1.Selected
Although have the correct syntax(or so I think) 
I get the red line under "Selected" and the form is empty.
