I have tried to no avail to get my line jumps to work on Visio 2013. I have gone into Page Setup/Layout and Routing and changed Line Jumps to Horizontal, Vertical, Last Displayed and First Displayed..... no luck. I have changed the type from Arc to Gap to Square to multi sided....no luck. I have changed the Vertical and Horizontal Size from .667 to 2, enlarged the view.....no luck. I have checked to see if there are global settings that might be affecting this..... no luck!
I have no more hair to pull out and all the toys have been thrown out of the pram. I give up!