Everything is ok when joint index is set to <74. I thought 74 may be a hardware-related param on my device or something.
However, when joint index is set to >=74, target model with NoLighting material can be rendered normally but cant't be rendered with normal Lighting material.
Two key lines in example:
line 19: index: 74
line 77: lighting: PrincipledMaterial.NoLighting
In another official example "skinning", the unique joint index is 72.