How to use USB Proxy correctly?

[CVTEXYY]

README.md mentions that USB Proxy can be used to access USB devices simultaneously in multiple independent processes.

USB Proxy

The .NET Huddly SDK allows for connecting to USB devices through a proxy. This way, multiple independent processes can talk to a USB device at the same time. When communicating with USB devices, consumers should always default to attempt connecting to this proxy. If this fails, native USB can be used as a fallback. See the above examples for how to do this.

But the example doesn't mention how to use it.

I'm currently having some issues, when starting the second process it doesn't work properly, the log says "Could not open device: Model: L1, VID: 0x2BD9, PID: 0xA032, Path: usbdev2.23"

As shown below:

My code is as follows:

Could you tell me how to use this function correctly?