Lost facial expression when converting from .unitypackage to .vrm [HELP] [MOD]

[Prof R.]

I recently moded Desktop Mate to import custom models.
I was looking into custom models and ended up getting one i really like. On the VRoid page the model has facial expressions, but when i got the model it was not a .vrm file but a .unitypackage file.
So i got Unity imported the Model as well as the plugins and converted the model to a .vrm file.

Great!

But heres my problem: The model lost all facial expressions. No blinking with the eyes, static mouth and no emotions...

Im a complete noob regarding Unity and VRoid so my only hope is the community.
So if anyone could help me out i would be gratefull!

[myt]

https://www.youtube.com/watch?v=rEOxBdoyHdg

[Prof R.]

引用自 myt：

https://www.youtube.com/watch?v=rEOxBdoyHdg

You helped me out big time! Big hugs your way!

[ThunkmanCharlie]

Sounds like the model needs rigging. VRoid can do all the aesthetics but the models once exported don't know which muscles to move with any given input, even though all of the inputs are through the DesktopMate program and not actually the user. That's the text answer, that the video above goes into how to solve.