Maybe a screenshot of the error, but I looked it up for you.
I wasn't sure what could actually help. So I will just send you what I searched up and provide a screenshot.
https://search.brave.com/search?q=unity+object+reference+not+set+to+an+instance+of+an+object+unity+vrchat+avatar+error&summary=1&conversation=006d8b62e35e19c5c03222
[image: Screenshot 2025-11-01 041637.png]
Nothings broken, you just need to limit the mmd blendshapes so that they work with your new default face. The only way to do that is remake them. Theyll be at the bottom of all the blendshapes on the head in japanese.