Troubleshooting LoadSceneFromDevice() Issues in MRUK 65.0.0: Inconsistent Behavior with Quest Link a

I have noticed that the LoadSceneFromDevice() function in MRUK 65.0.0 does not work. However, strangely, it works when using the Synthetic Environment Server in the Meta XR Simulator. It only fails when running from the Unity Editor while the Quest is connected to the PC via Quest Link.

However, if I check the "Load Scene On Startup" option in MRUK and execute LoadSceneFromDevice() from MRUK, it works. It only fails when I call LoadSceneFromDevice() from my script.

These functions worked without any issues in MRUK 64.0.0. Why is this happening? I can't understand it.