SteamVR Overlay Not Loading

Description

This might be more of a SteamVR issue, but since a week ago the SteamVR overlay has stopped rendering on my GPU-partitioned Hyper-V VM (https://github.com/jamesstringerparsec/Easy-GPU-PV/). The screen still dims when the menu is called up and the laser pointers still indicate that a menu is there, but nothing is visible. This happened alongside a SteamVR update. Reverting to an older SteamVR version resolves the issue, at the cost of not being able to do multiplayer.

Expected Behavior: SteamVR overlay should be visible.

Steps to Reproduce: Try connecting to the latest SteamVR over ALVR or Virtual Desktop. I recreated a new VM and the same issue occurred on that one to... SteamVR does not like something in the architecture of a GPU-Partitioned VM.

Looking forward to any thoughts if anyone has tried doing using SteamVR in a virtualized environment. Perhaps I am missing some sort of redistributable? But how come the older SteamVR versions work fine?

General Troubleshooting

[x] I carefully followed the instructions in the README and successfully completed the setup wizard
[x] I read the ALVR Wikis here and here

Environment

Hardware

Note: for Linux, an upload to the hw-probe database is preferred: hw-probe -all -upload

CPU: Hyper-V 8 Virtual Processors at 3.8 GHz

GPU: GPU-partitioned GTX 1080 Ti

Audio: Hyper-V

Installation

ALVR Version: v18.2.1 (latest)

SteamVR Version: Build 8357149 (latest)

Install Type:

[x] Packaged (exe, deb, rpm, etc)
[ ] Portable (zip)
[ ] Source

OS Name and Version (winver on Windows or grep PRETTY_NAME /etc/os-release on most Linux distributions): Windows 10

alvr-org / ALVR