TWebEditDropDownControl.OnExit does not fire if the TWebEditDropDownControl is bound to a <div id="weddc"></div> with its ElementID.

It does fire if it's not bound to a html element.

However TWebEdit.OnExit works if TWebEdit is bound to <input type="text" id="edit1"/> with its ElementID.

Thanks for reporting.
We could trace & fix this issue. The next update will address this.