Sorry, I don't understand English very well, so I am not sure if I am answering correctly..,
The crying emoji is created by the same process as the other emoji.
I am aware that it is impossible to further correct the core part of the model, as it is working fine in other apps such as VRMLiveViewer.
The only other thing I can do is to modify the textures of the face and body (color, facial expressions, etc.).
If you have any requests, I can accommodate them.