On my project I get this error when I click on a GUI element in the inspector and the right panel disappears.
I am using XMLLoader to load my GUI elements and I cannot load an XML on the PG to test. I still did an online demo of the problem. I put the inspector.bundle.max.babylon
Load the game, wait until the character is fully loaded. Then select the GUI element in the left panel of the inspector (the right panel disappears)
Here is the error I have:
Uncaught TypeError: Cannot read property ‘AdvancedDynamicTextureInstrumentation’ of undefined