RemoteFX Dual Remote Screens displayed on a 3 Monitor workstation

Hi

I seem to be running into an issue getting RemoteFX running with anything less than all my local screens.

For instance:

My local Workstation has 3 monitors all running at 1280x1024

In hyper-v I add the RemoteFX adapter and set it to 2 screens with a resolution of 1280x1024

When I connect to the Remote session I only get a single monitor displayed and when checking the “Screen Resolution” on the Remote session it shows monitor 2 as detached.

If However I add a 3^rd monitor to the VM and tick “use all my monitors” I get a fully functioning 3 screen session in the resolution I want with the ability to stream HD Video “impressed by the way” without any problems at all.

I have read the documents several times and the fail back to single monitor “sounds like what is happening” but this should only occur when:

• If you request a resolution that is not supported, RemoteFX defaults to a single monitor session at a lower supported resolution.
• If you request a resolution that is higher than the maximum resolution assigned to that virtual desktop, your session will default to a single monitor session at a lower resolution.
• If you request a greater number of monitors than the maximum number assigned to a virtual desktop, your session will default to a single monitor session.
• If you request a resolution that is not supported, you will get a single monitor RemoteFX-enabled session at a lower supported resolution.
• If you request a resolution that is higher than the maximum resolution assigned to that virtual desktop, your session will fall back to a single monitor lower resolution session.  

From this list I can only think that the Client “local workstation” is requesting more Screens than the VM is capable of so failing the presentation back to a single screen, however I thought the Client side Group Policy “Computer\AT\WC\RDS\RDSH\Limit maximum number of monitors [Enabled, 2]””that has been set” was meant to force the client connection to only request 2 screens?

So what am I missing, any help would be great!

Many thanks

James