According to this, the Tiny7 VMs (Service Pack zero) aren't using RemoteFX, which is supported by the fact that you're able to run the same amount of VMs as I can run in VMWare.
RemoteFX requirements. Must have SP1 to use RemoteFX, and Tiny7 doesn't have it.
Also, I tried my own Win7 SP1 and it wouldn't launch Eve because it said there wasn't a display adapter.
flashpointid1, Are you using Tiny7? How did you get them to run?. Maybe there's a big difference from me using the server version.
On the other hand, I installed Hyper-V Server 2016 (No GUI. Free Stand-Alone) on a 7 year old computer of mine. (It was a giant pain in the ass! Like days of many hours!)
i7 930 with HT
Video - AMD 5770 (1GB 256-Bit GDDR5) (RemoteFX giving 256mb to VM)
Windows 10 Guest
RemoteFX doesn't work on Windows 7.