Are you adding this behavior to 3dobject (not recommended) Or something else? Send a test project. Also look at dev console for errors.
Viewing post in Construct 3 Rotate 3D Behavior comments
https://www.mediafire.com/file/rjvumsroaka9npg/Mesh.c3p/file
Im just playing around and trying to make 3dobject rotate with the cube. There's many errors so I think I probably failed.