Currently when the RadButton is used as an Image button: - There is a flickering on mouse over and mouse out. - During the postback the image of the current or other image buttons disappears on mouse over/mouse out. The unexpected behavior is observed under Chrome and page is hosted on Cassini. It is caused due to the image requests that Chrome does for each state of the RadButton - normal and hovered.
Not reproducible - 2015.1.401 version.