Adding a bend to a straight connector in Microsoft Visio 2013

To achieve this, follow these steps:

1. Create a new, blank page
2. Select the new page (if necessary)
3. Click on the Design tab
4. Click the small arrow on the bottom-right of Page Setup
5. Click on the Page Properties tab in the Page Setup dialog box
6. Select the background page from the Background drop-down box
7. Click OK

Interesting, this happens if you change the default values of the rows and columns of a grid shape (for example in template Charts and Graphs). The specific shapes are old and were not updated in Visio 2013. This was not the intended behavior by the developers. This is something that the Visio Team should fix therefore it should be reported to the Visio team at Microsoft.