I imported an Excel adjency Matrix with 66 nodes. The first time I do a hierarchical layout the edges are drawn nicely. I turned on smooth bends.
After that I resize a node and the edges become this:
I thought I could 'just draw all the edges like a refresh' by using Polyline Router. With defaults:
First I thougth "Its bussing al edges" so lets tinker with options. Spend about an hour (un)checking boxes at the "Polyline Router" dialog and Ctrl+Z myself back and forth.
ThenI thought "Maybe one edge at a time works". It keeps existing 'bends' (green anchor points?). The red arrow is what I expected. ;)
I'm fairly new to this, so maybe I'm just noobing around.