Repro: https://playground.babylonjs.com/#CP2RN9#317
Compare against https://playground.babylonjs.com/?version=8.31.2#CP2RN9#317
Open the console, try to mouseover the area roughly under the lower lip of the mesh. In the latest version, the gpu picker will show pick results but not in the 8.31.2 version. Or you can try picking the tip of the mouth, either way works. I suspect the vat animation isn’t updated in the pick texture.
Took less time than I tot, yay!