There are some problems with the Gltf export from Unity, the export does not drive the drawing model to display normally, but after adding the animation, the export will appear "start offset of Float32Array should be a multiple of 4"

Questions
1

5~~T_Q%5D5C%2447POFIVNIUWDM
5~~T_Q%5D5C%2447POFIVNIUWDM1130×187 112 KB
_~%60%25%24W4OJ8)MXL26NOZHSFV
_~%60%25%24W4OJ8)MXL26NOZHSFV1116×416 226 KB
babylon.zip (1.1 MB)

2

At present, I do the same steps here, some of the models will have such problems, and some of the models show that they are normal.I put GLTF files at https://sandbox.babylonjs.com/ test, zip which I used in the current model, no map.

3

We do not own the gltf exporter from Unity. you should report it to the owner