When VRCFaceTracking is launched as a SteamVR start-up overlay application, the VRCFaceTracking.ModuleProcess task continues running in the background even after SteamVR is closed.

[PerryAIWasTaken]

I noticed this issue was marked as completed on December 29th, 2025, however it is still occurring for me. The behaviour persists even after fully reinstalling SteamVR. When this issue occurs, SteamVR continues to appear as running even after it has been fully closed, either using the hamburger menu or pressing the X on the SteamVR window. This problem does not occur on older versions of VRCFaceTracking and only happens when VRCFaceTracking is launched as a start-up application through SteamVR.

Setup

OS: Windows 11 Pro 25H2
CPU: Ryzen 7 9800X3D
GPU: RTX 4070 Ti Super
RAM: 64 GB

SteamVR: 2.14.5
VRCFaceTracking: 5.4.2.0

Prerequisites

• VR HMD connected to the PC

• In SteamVR Settings, VRCFaceTracking is enabled under start-up Overlay Applications

Steps to Reproduce

1. Launch SteamVR

2. Confirm that VRCFaceTracking starts with SteamVR automatically

3. In SteamVR, open the hamburger menu in the bottom left and select Exit VR, or close SteamVR by pressing the X on the SteamVR window

4. Open Task Manager and check background processes for VRCFaceTracking.ModuleProcess

Result

VRCFaceTracking.ModuleProcess remains running under background processes even after SteamVR has been closed.

Frequency

Occurs every time. 5 out of 5 attempts.

Expected Behaviour

VRCFaceTracking.ModuleProcess should close whenever SteamVR closes.

[Mithostropic]

This issue happens for me regardless of if VRCFaceTracking is set as a auto start with Steam. Obviously it's more of an issue that way since it stops SteamVR from closing if it is set up as auto start. Regardless of how I start it a process is always left behind that is taking up about 6% of my CPU when the main app is closed.

[InconsolableCellist]

For @PerryAIWasTaken and @Mithostropic, which module(s) do you use, and what hardware?

[PerryAIWasTaken]

@InconsolableCellist I use the VRCFT-Babble module with the Bigscreen Beyond 2e.

[Mithostropic]

@InconsolableCellist I am the same as Perry. Bigscreen Beyond 2e and I use the VRCFT-Babble module.

[GameGeek720]

seeing the same issue with Beyond 2e and the babble module

[emarlfox]

I'm also experiencing this issue with a Beyond 2e and Babble module.

[Cyberboss]

DM me on Discord and I can provide a .dmp of the zombie process Username dominion

[Mithostropic]

Just wanted to chime in real quick and say that the April update did not fix the process termination issue for me.

[SmilingEnchanter]

Having the same issue with Cymple Facial Tracking Module.
Also, VRCFT frequently crashes when changing world or avatar. This happens in a probability of about 50%. I don't know whether it's the problem of Cymple.

[tarocco]

In my experience this poses an issue because it interferes with SteamVR shutdown.