Stability Issue with Multi Body Tracking

Hi,

I’m experiencing a systematic camera feed freeze when using the **ZED Unreal Engine sample**project. After a few hours, the camera feed displayed in the UI stops updating and body tracking no longer works.

I also tested the Live Link plugin separately, before one hour has passed it returns:
[Sample] error grab. Exit program in loop. At this point, body tracking also stops working.

I tried multiple configurations without success:

  • SDK 5.2 + CUDA 12 + Unreal 5.6

  • SDK 5.2 + CUDA 13 + Unreal 5.6

  • SDK 5.3 + CUDA 12 + Unreal 5.6

  • SDK 5.3 + CUDA 13 + Unreal 5.6

I am using Unreal Engine with DirectX 11.

Additional notes:

  • I’m using a USB 3.0 cable, not USB 3.1.

  • When building the Sender Mono app for the Live Link Pipeline, I had to replace:
    input.setFromSerialNumber(serial_number, sl::BUS_TYPE::GMSL); with:
    input.setFromSerialNumber(serial_number); to compile successfully.

The issue happens on untouched default sample projects after a few hours, not only on my own project. I already built an application using the ZED camera, but I’m now realizing the setup is very unstable for long-running use, which is worrying for my installation.

Does anyone know what could cause this or how to improve long-term stability?

Thanks a lot.