Stefan,
I will take a more in depth look after my holidays.
What I'm currently is that it was working with Q1 2015 SP1 and that it doesn't work with Q2 2015.
My scenario is much more complicated that just a single grid view in a window: the main window is a RibbonWindow, with a Ribbon and a Docking. Inside one of the panes (created dynamically, when the user clicks on a command in the ribbon), I have a TabControl, each tab containing a grid view and some other controls. The TabItem are created dynamically, because the ones to display depends on the data.
So I need to simplify the application just to look where the problem is.
