Blender's glTF 2.0 importer and exporter animation export issue

Hello,

I’m encountering an issue when converting a 3D character with motion-captured data to glTF using Blender for use in a web AR service.

When I export the model and view it in the “glTF Viewer,” initially it displays fine, but parts disappear when I move the viewpoint. The issue doesn’t occur when the model is static without animation, so I suspect there might be some problem with the animation and glTF. However, I lack knowledge of computer programming and find myself in need of assistance.

Additionally, I’ve noticed that this issue doesn’t occur when viewing the model in the Babylon viewer (https://sandbox.babylonjs.com/), which makes me wonder if adding some code could solve the problem, though I lack the skills to do so.

Please, could you assist me? I’m using Blender version 3.6 LTS.

I’ll attach the model data.