Hi. I am struggling to connect two dropdown panel to the gallery to work properly

My first dropdown Items code is
Sort(Distinct(IB_Input; Coverage); Result; Ascending)
My second dropdown Items code is
Sort(Distinct(IB_Input; Sales_Play); Result; Ascending)
I am trying the following code in the Gallery Items, but the gallery shows empty box
Filter(IB_Input;Coverage=Dropdown_SalesPlay.Selected.Result; Sales_Play=Dropdown_Coverage.Selected.Result)
Any suggestions would be really helpful as this is the last thing to do for this app.