Hi ArraynI'm trying both MPC and Beam Formulation for whole assembly. Before that I've tried both MPC and beam formulation for a simplified version of assembly (having only few components) just for checking the contact. Both formulations are working and showing similar trend in natural frequencies. For the whole chassis however, beam formulation is converging and giving result. MPC formulation is unable to converge and showing an unknown error. I think this is happening because of improper selection of contact and target bodies.n