Why not give us three lines of data that show the problem, and while you are at it collapse down to the minimum number of fields to show the issue - probably 2.

You don't show us byString.

You really, really should add use strict; use warnings; to every script you write or maintain.

Currently because your variable list is so long and doesn't contain any spaces you node renders about three screen widths wide. It is never good practice to create lines that are longer than can be viewed without scrolling, and good practice generally calls for lines that are fewer than 80 characters wide.