Unable to Enable Desktop Floating Pool

Hi,

I am working on upgrading to Horizon View 7.2.0.  I have created an "Automated Desktop Pool (Floating Linked Clone)".  When I go to the "STATUS" and use the drop down to "Enable Desktop Pool" I receive the error " [userid] failed to update Desktop [pool name] ".  I looked in the View Connection Logs and found the following error:

2017-06-22T23:31:02.871-04:00 ERROR (0A88-18AC) <pool-11-thread-5> [FaultUtil] InvalidArgument(parameter: desktopSettings.displayProtocolSettings.pcoipDisplaySettings.renderer3D): 3D rendering cannot be enabled when default protocol is RDP and users are not allowed to choose protocol.

In the Pool settings "3D Renderer" is Grayed Out and set to "disabled"

I did not have an issue Enabling the Pool configured like this in Version 6.2.0.

Thanks in advance,

Rick