😩 Signal in DEF before detailed routing :

- gpio_out[29] ( PIN gpio_out[29] ) ( top_I.ctrl_I pad_uo_out[5] ) + USE SIGNAL
      + FIXED met4 ( 1495460 2436620 ) ( * 2838660 ) M3M4_PR ( 97980 * ) M3M4_PR ( * 2867335 ) M3M4_PR
     ( -850 * ) ;

Signal in DEF after detailed routing:

- gpio_out[29] ( PIN gpio_out[29] ) ( top_I.ctrl_I pad_uo_out[5] ) + USE SIGNAL
      + ROUTED met4 ( 1495460 2436620 ) ( * 2838660 )
      NEW met3 ( 97980 2838660 ) ( 1495460 * )
      NEW met3 ( 97980 2838660 ) ( * 2867335 )
      NEW met3 ( -850 2867335 ) ( 97980 * )
      NEW met3 ( 1495460 2838660 ) M3M4_PR
      NEW met3 ( 97980 2838660 ) M3M4_PR
      NEW met3 ( 97980 2867335 ) M3M4_PR ;

It forgot to switch from

met3

back to

met4

between each via !?!?!?