I am trying to access getFragmentList() in a Model object, and I keep getting this error:

TypeError: Cannot read private member #O from an object whose class did not declare it

After experimenting, my best guess on what could be causing this issue is the private #frags properties in model. I’m not sure why the member is called #0 in the error as well?

Does someone have any ideas about this? Is there any way around this? Any help would be appreciated.

I am using the latest version of Autodesk Forge Viewer (v7).