Scrolling to validation error causes crash

[SteveMarvin]

So I'm not sure what's going on here, but when I click on a validation error that scrolls the page, the window goes blank. I still have the menus and nothing else, but they don't really work. I can select the CLose Project item, but nothing happens. If I choose Open Menu, it gives me the open dialog, but crashes when I make a selection. The bug occurs when I select this validation error line. It scrolls to the error point and then blanks.

Here is the project I used: XML3.zip