Local client drive is missing in Windows 2012 RDS published app

I used to see my local client C drive of my workstation when I launched a Windows 2012 published app.  But not any more. 

I tried disable the "Do not allow drive redirection" in Computer Configuration>Administrative Templates>Windows Components>Remote Desktop Services>Remote Desktop Session Host>Device and Resource Redirection but local client drive is still not showing up. 

Please advise.  

Thanks.