FCombo Box with setItemSymbol

Im having a little problem with a combo box that I used setItemSymbol with.

When you drop down my combo box it appears normal, a small symbol with text beside it for each line.
Like this:
:egg:Combo Item 1
:egg:Combo Item 2

But (and this is the problem) to select the combo item you have to click the symbol :egg: , clicking on the text “Combo Item 1” will not select the combo box item.

Does anyone know what I need to do to make the combo box item select when either the icon or text it clicked?

Thank you