Voyager, to AR mode, back to Voyager view: 'Failed to load model derivative: Cannot read model properties of null (reading 'traverse')'

[vincerossi]

After loading https://3d.si.edu/object/3d/unknown-burial:297ef043-dfe2-4a68-978a-a570b2c3ab18 model in Voyager on 'Google Pixel 5a, Android 11, Chrome 95.0.4638.74' entering AR mode, annotations then turned on in AR mode, annotation #5 clicked 'read more', then sent back to Voyager embed view, user witnessed spinning loading icon that would not disappear, and then the following error after two more sequences:

Error: 'Failed to load model derivative: Cannot read model properties of null (reading 'traverse')'

Google Pixel 5a, Android 11, Chrome 95.0.4638.74