Thanks, based on the log, seems like it is loading as expected, but when I attempt to display the count at the simulator, it crashed... I have discovered that it is an issue with this function call: await appState.referenceObjectLoader.loadBuiltInReferenceObjects() without it, my simulator can properly display appState.referenceObjectLoader.enabledReferenceObjectsCount = 0...

Hello, Thanks for the help, though my case is a bit different. For the sample project case, my plan is actually to remove the entire Immersive.usda, not just one of its transform. By doing so, somehow, everything gets removed and crashes with message saying project quit unexpectedly