Hello! I would like to simulate the supply chain in a production workshop. I have 20 machine tools, 3 workpieces and 3 operators to transport from each warehouse to certain machine tools. I don't realize why the operators are not waiting for the process to end and they are moving without the part. For example, when processing P1 to pp_1, Operator_P2 and Operator_P3 move with parts P1 and P3 to pp_1 because there they are to be processed, but when processing is finished P1 to pp_1, Operator_P2 and Operator_P3 move without parts P2 and P3 to pp_2 and pp_3. The paths of each part P1, P2 and P3 are given by P1_process, P2_process and P3_process. Each processor has a set processing time depending on the part type. Can someone help me?