HTML Widgets; widget.UI.DBCombo control; Dropdown may be displayed as one item high with vertical scrollbars

In situations where the HTML Widget is displaying in mobile mode, i.e., with control captions above, rather than to the left of - the control, DBCombo dropdowns may display correctly the first time but upon clicking the dropdown button again, they will be a single item high and have vertical scrollbars.

This could be seen when drilling down to the Account Standard Transaction widget from the New Account widget and dropping down the Payment Method control which is shown for "Investment" type Elements.