Apple's own USDZ files from their website does not display properly both in OPReview and in Keynote when imported. It displays properly, however, in Reality Converter bit with this error: "Invalid USD shader node in USD file Shader nodes must have “id” as the implementationSource, with id values that begin with “Usd”. Also, shader inputs with connections must each have a single, valid connection source." I tried importing other models from external sources and they work without any issue at all. Is there any potential fix or workaround this? Thanks in advance.

Is there a way to continue with the same codes from Playgrounds to Xcode, especially those visual block of elements e.g. world.place ? Any library that I can import to enable the use of those blocks from Playgrounds would be welcome.