My design is composed of two identical sections, so I tried to use modules schematic/pcb to duplicate a part of my design. I created schematic/pcb modules from a design of one section, then I placed duplicate modules in schematic and pcb in a new project. The components were renamed correctly both on schematic and pcb, Unfortunately all the tracks on PCB kept the old nets. For example: the track connecting  pin 5 of U1 and R1 on the first section of the design has a net name U1_5, when placing the second section U1 becomes U2, R1 becomes R11 which is correct, but the track connecting pin 5 of U2 to R11 has still U1_5 as net name on the PCB. Of course the ratlines indicate clearly that the second section is incorrectly wired. What went wrong here ? Is there any method to replicate pcb modules correctly ? Any idea ? Thanks