Instanced assets not rendered correctly when plugin launched in Isaac Sim

[SuomiKP31]

Platform: Windows 11 Pro
Processor: i9 12950HX
GPU: RTX 3070Ti Laptop

I tried adding the installation path of OIGE manually in the extension manager. Most tasks run fine except for Ants and Humanoids, which are using instanced assets.

A warning was thrown once I startup the task:
[Warning] [omni.physx.fabric.plugin] Prototype prims (instancing prototypes) are present in the stage but omnihydra scene graph instancing is not enabled! Please consider enabling it and reload the stage.

The task will run properly but the humanoids will not animate during the process.

However, if the plugin is launched through the extension workflow (by running isaac-sim.gym.bat --ext-folder <parent/OIGE>), this problem does not appear.

Is there any way to enable instancing and run the example from Isaac Sim editor? What is happening under the hood when we run isaac-sim.gym.bat?