Ok.. I've just started to migrate our RemoteFX VM's over to the new rapid provisioning feature in 7.5 but as a good techie I decide to test first...

When connecting to a RemoteFX enabled VM via Web Access (on AppPortal), I get this error,

Last time I saw this, it was becuase the RDSh role was also running on the host. I can confirm it's not.

Standard RDP client works fine.

Any ideas?