Possible VR memory leak

User Support Hub Virtual Reality (VR)
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1

When playing VR my 64GB of RAM completely fills up, eventually crashing the game. I have been doing some testing, but the issue seems to happen in VR only. It happens repeatedly, almost every session. In desktop mode everything runs really stable as far as I have tested.

I am running the latest SU4 beta. I have disable almost all external addons, just to see if it helps. I am using the Pimax Crystal Super Ultrawide. I also have a motion rig and all sort of controllers.

I have made a screenrecording from the flatscreen in dev mode with the FPS information screen and when the crash happens. I can share this if this is helpful.

Maybe someone here can help, curious to see if I am the only one having this issue.

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My rig and driver information:
NVIDIA system information report created on: 11/01/2025 16:34:27
NVIDIA App version: 11.0.5.420
Operating system: Microsoft Windows 11 Pro, Version 10.0.22631
DirectX runtime version: DirectX 12
Driver: Game Ready Driver - 581.57 - Tue Oct 14, 2025
CPU: AMD Ryzen 9 5900X 12-Core Processor
RAM: 64.0 GB
Storage (6): SSD - 119.2 GB,SSD - 232.9 GB,+4 more

Graphics card
GPU: NVIDIA GeForce RTX 4080 SUPER
Direct3D feature level: 12_1
CUDA cores: 10240
Graphics clock: 2610 MHz
Resizable BAR: No
Memory data rate: 23.00 Gbps
Memory interface: 256-bit
Memory bandwidth: 736.064 GB/s
Total available graphics memory: 49097 MB
System video memory: N/A
Shared system memory: 32721 MB
Dedicated video memory: 16376 MB GDDR6X
Video BIOS version: 95.03.44.00.68
Bus: PCI Express x16 Gen4

Display (1): MSI MP341CQ
Resolution: 3440 x 1440 (native)
Refresh rate: 60 Hz
Desktop color depth: Highest (32-bit)
HDCP: Supported

2

You’re running beta. Have you tried stable? (SU3)

3

Not yet tried reverting to SU3, but I am curious to know if others have similar issues or if this is just a me problem.

4

If you’re familiar with Windows Event logs, you should be able to see which application was the cause of the failure. You can copy and paste the log into Google Gemini, for example, to see what it makes of it.

Look in the Application log for Errors around the time of the failure.

For what it’s worth, I’m on SU4 beta and only fly in VR, I haven’t experienced an issue like this in SU4. I did have an issue that presented like a memory leak in SU3 if I flew the A10 as after about 10 minutes of flight, the sim would start lagging and would crash.

5

I checked task manager and MSFS2024 was actually at 45-50GB RAM before crashing, so it is MSFS itself causing the issue. Also the FPS counter from devmode shows similar values. Interesting to hear you have no issue in SU4, but something similar happened in SU3.