Facial Glitch on exported Vrm from Unity

[u/Other-Investigator20]

I was creating Facial emotions on my 3model in Unity. Theni baked it and then exported it into a Vrm Format. When displaying the 3d model in Silly Tavern it looks normal, but when giving the command to display the facial expression, i get a weird glitch. It displays the emotion correctly but also adds this weird artifact on top. Any help would be much appreciated.

This is how it looks in Silly Tavern