Vision Pro passthrough issue and completely broken experimental render

[Arri-Alexa]

Description

There is a passthrough bug which appears once in a while. It seems like this happens as soon as something close is to the headset but it also can happen with objects a few meters away. If I enable experimental rendering, there is no passthrough at all. But since the latest release of v20.12.1 experimental render is unusable. There are frame glitches and even worse, every time the one random frame occurs, the avatar also glitches until the avatar is completely broken. I will upload a video which showcases this issue with the passthrough.

The other bug with experimental rendering should be solved as soon as those frame glitches stop. But to be honest, I used experimental render since a half year from time to time and those frame glitches basically were always there as far as I remember. So this issue is there since a long time but since the v20.12.1 it destroys the avatar in vr chat.

Here is a video which showcases the passthrough issue:
https://drive.google.com/file/d/1GYEWUmZM8gqxjsj9kxC0AWkkPF1fpBP8/view?usp=sharing

General Troubleshooting

• I carefully followed the instructions in the README and successfully completed the setup wizard
• I read the ALVR GitHub Wiki

Environment

Windows 11

Hardware

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

CPU:

GPU:
3090 ti
GPU Driver Version:

Audio:

Installation

ALVR Version:
v20.12.1
ALVR Settings File:

SteamVR Version:
latest
Install Type:

• 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):