Greetings,
Looks like a bug was introduced in 2016.2.719+. Put the following in a blank web form:
<telerik:RadColorPicker ID="RadColorPicker1" ShowIcon="True" runat="server" SelectedColor="Red"></telerik:RadColorPicker>
<telerik:RadColorPicker ID="RadColorPicker2" ShowIcon="True" runat="server"></telerik:RadColorPicker>
Select a color in one control and it changes in both controls.
Works fine in 2016.2.712 and earlier.
Thanks,
Gary.