You cannot use moving meshes in 3D Electromagnetic Waves interfaces, the 3D Magnetic Fields interfaces, and the 3D Magnetic and Electric Fields interfaces.
Link: https://www.comsol.com/blogs/deformed-mesh-interfaces-rotations-and-linear-translations
Michael Littman
You cannot use moving meshes in 3D Electromagnetic Waves interfaces, the 3D Magnetic Fields interfaces, and the 3D Magnetic and Electric Fields interfaces.
Link: https://www.comsol.com/blogs/deformed-mesh-interfaces-rotations-and-linear-translations