GLTF. Models with object parented to armature fails

[SilverfishVR]

Importing a GLTF (glb) model that has mesh a object parented to a armature bone fails, log messages is:
Model entity failed to load in time: 10000 ... setting dimensions to: undefined

The same file imports correctly if, instead of parenting the object, it is parented as a skinned mesh with weights.

The file is valid GLTF, so it should at least load or give proper reasoning for the failure, even if the engine/importer does not support object parenting.

To reproduce:
Both files are validated with https://github.khronos.org/glTF-Validator/ and loads in https://sandbox.babylonjs.com/. They both have an animation to verify the parenting but it will not play in Overte since GLTF is not yet supported as animation source.

1. import: https://silverfish-freestuff.s3.amazonaws.com/TestStuff/objectAnim/boneAnimation_1.glb. after a while you should see a green cube and the aforementioned message in the log.
2. import: https://silverfish-freestuff.s3.amazonaws.com/TestStuff/objectAnim/boneAnimation_2.glb. You should see a white cylinder.

[HifiExperiments]

this sounds like an issue earlier in the pipeline, with the serializer

[SilverfishVR]

I can't say with confidence that this is a new issue, I looked through some of my old models and none of them use object parenting, turns out, ignorance, really is bliss.

I have tried to rework my model but it still won't load, I guess there is still something in there that the serializer can't handle, if I export it without the armature it loads. fbx export also loads but it looks like [REDACTED]

Here it is:
http://silverfish-freestuff.s3.amazonaws.com/TestStuff/door%20rig%20test%2021.blend

I will cut my loses now, and not waste more time on trying making it work, feel free to do the same.