BoxInterleaved model does not display correctly

[erich666]

Steps to reproduce: go to https://github.khronos.org/glTF-Sample-Viewer-Release/ and choose the model BoxInterleaved. Screenshot:

I'm using Chrome on Windows. I get the same results on Microsoft Edge on Windows.

Compare this to say https://asset-explorer.needle.tools/BoxInterleaved or drop the model at https://github.com/KhronosGroup/glTF-Sample-Assets/tree/main/Models/BoxInterleaved into say https://gltf-viewer.donmccurdy.com/, where you get (after adjusting the camera) something like:

Note: there was a bug filed about BoxInterleaved five years ago that was closed, so this model evidently displayed correctly at some point. Regression?

[echadwick-artist]

Perhaps related... I get a similar result in the glTF Sample Viewer with a model exported using Autodesk's built-in glTF exporter for 3ds Max.
UV0-dual-paraboloid_UV1-equirect.zip

It passes the glTF Validator, with a single Info about a non pow2 texture.

How it renders in glTF Sample Viewer Release (https://github.khronos.org/glTF-Sample-Viewer-Release/):

How it renders in UX3D's development version (http://gltf.ux3d.io/):

(Edit: fix for UX3D broken link)