So in your screenshot RG is not visible. An it will appear only when you’ll hit search button (if any results will be found). Isn’t that what you’ve tried to achieve?
As I can see - your search should trigger only when end user clicks on search button. Do you you have any default “do a search” for your RG Activity (appearance tab)?
So, you have “ignore empty constraints” in a default RG search. It means that if the user hasn’t chosen any filter/constraint - al items will be returned (check the manual).