Greetings, I need some help in identifying and solving a problem with restart files. For a better understanding, the .inp files used are described below: abaqus_rotation.inp = original file in which the necessary restart information is written. abaqus_load.inp = original file that restarts from abaqus_rotation.inp. abaqus_rotationtemp.inp = abaqus_rotation.inp edited with Abaqus2Matlab. abaqus_loadtemp.inp = abaqus_load.inp edited with Abaqus2Matlab. The editing is performed using tempAbaqusInpFile(inp_name) , without any changes on the code. The simulation runs perfectly using the following statement and the original files: abaqus_simulation = system(['abaqus job=abaqus_load.inp oldjob=abaqus_rotation cpus=4 interactive']) However, the simulation does not run and the following message appears when I replace the job and/or the oldjob with the edited files. If possible, could you help in solving this problem? I don't know why, but I can't upload the files here... If necessary, I can send them by e-mail.