May I suggest you try testing this model on a web APS viewer to see if you pick anything related to viewer libraries from front-end on console: You may try:

1. https://autodesk-platform-services.github.io/aps-tutorial-postman/display_svf2.html
2. https://viewer.autodesk.com/

I have tried the steps you have provided on the APS VS code extension and both models loaded okay. I am not sure of what your second model entails but if the same issue persists, please reach out to [email protected] via email and we may require your sample model.