I have a FlatColorPicker nested inside of a Kendo PanelBar that is not behaving. It is typically NOT visible when the page renders because it is inside a collapsed panel of the PanelBar. At this point it is acceptable except that the slider on the bottom only fills half of the full width of the picker, but it does work. After my "Save" js function for the page runs, the slider disappears leaving on the round slider handle.
I DO have some bootstrap styling inside the Panel but I have gone so far as to remove the FlatColorPicker from the PanelBar and bootstrap to no avail. Still behaves the same. I have verified that the Value string for the color is correct.
If I make the simple change to a ColorPicker, it works as it should. I change nothing from the above code except removing the "Flat".