Voicemeeter (and Banana) do not work in Virtual Machine

[gork]

I am having an odd problem. I have Voicemeeter Banana installed in a virtual machine. It is a Windows 8.1 VM running on Parallels Desktop 10 on a Macbook Pro. In this configuration the system can be booted as a virtual machine, and also can be booted as the native OS (not a VM). Everything works properly when booted natively, however some things are not working properly when running inside a virtual machine.

In the VM, the audio IO with "real" hardware works fine. The "A" busses work properly. I can connect a hardware input to a hardware output just fine. However, when playing sound into the VAIO or VAIO AUX devices, I see the level indicators in the windows audio control panel operating, but the meters in Voicemeeter show no input. Likewise, if I connect the Hardware input 1 to B1 or B2 the audio meters inside of Voicemeeter indicate output, but it is not passed through to a program recording on the VAIO or VAIO AUX device. I have tried opening the virtual devices as ASIO, WDM, KS, and MME and there is no difference in behavior.

If I boot windows natively (not running as a VM) everything works as expected in the same installation. audio from the VAIO and VAIO AUX devices pass into and out of the Voicemeeter console exactly as they are supposed to.

[gork]

This problem must be more nuanced than I originally thought. The virtual devices are now working fine. I will do my best to find some way to reproduce or differentiate the issue.