I am using the DevEx LayoutControl on almost every form I have in my application.  I have been having a problem since upgrading to 1.5.  I can't put most of the inherited controls inside a layout control.  It gives me an error saying "The object that the business object has been dropped on must implement MicroFour.StrataFrame.UI.Windows.Forms.IContainerControl."  I never had this problem until I upgraded, so maybe it's something to do with the Inherited UI compilation?