The function module /SPE/QUEUE_CONTAINER_SHOW does not have any code that checks whether FM parameters have changed, or code to delete generated FM.
If you make a copy of FM Z_EW_PROCORDCONF_CREATE_HDR, first run of queue container will generate corresponding FM.
OR it might be possible to delete the generated FM manually using FM FUNCTION_DELETE, so that next run of queue container is able to generate it again with recent parameter list.