I imported "springback_exp_form.inp" file in Abaqus Example Problems - Static Stress/Displacement Analyses > Import analyses > Springback of two-dimensional draw bending example. When I create a job file and run it, the run aborts and gives an error stating that some nodes have no mass associated with them. It seems that the inp file is not correct. Is there a way to correctly get the inp files in this example problem?