Link to View in app not working, help please?

[Motowez]

I have a source sheet with a menu tab as below

In App Sheet, I've setup an action to say "Linktoview([Location])" and then set the Behaviour to be [Type]=View. I have also added this to the ordered list of actions that fall under "Menu" view. When I click on the "Call Offs" Icon is does not take me to that view and just shows a white screen within app sheet. Any suggestions please?