I’m still hoping someone can help out / point me in the right direction. Just for clarity, I created a gif of the problem, maybe it helps understanding what’s going on. Once switched to “color”, the animation works, but any change of the slider automatically resets the camera angle.
For now I created a workaround by substituting the dcc.Graph element with an html.Iframe, and then using a callback to load a new plotly 3dMesh html (pre-written). It solves the problem above but it’s not a great solution since it also makes me lose the ability to do any other callback/access the clickData from the 3D mesh.