In CodenameOne, why is a checkbox not selected but appearing selected?

I Have an odd problem - not sure if there's a coding mistake or a bug in CN1.

Basically I create a row of CheckBox objects and put them in a container that is X-Scrollable. If i click on one un-selected item and drag until the "elastic" effect pulls it back, it appears to be selected, but the code does not record it as selected.

Please see the following video of the issue: https://youtu.be/wSki1JsBetI

here's the Checkbox creation code:

cb = new CheckBox(getCacheableImageMaxHeight(mod.getIconFile(),moduleImageHeight));
cb.setName(mod.getModuleID());
cb.setToggle(true);
cb.setUIID("ModuleButton");
cb.setFocusable(false);
cb.setScrollVisible(false);
cb.setTextPosition(Component.BOTTOM);
cb.setCloudDestinationProperty(cb.getName());

//actionlistener added for debugging only
final CheckBox cbFinal = cb;
final String modName = mod.getDisplayName();
cb.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent evt) {
        System.out.println(modName+", "+(cbFinal.isSelected()?"SELECTED":"selected") + ", " + (cbFinal.hasFocus()?"FOCUS":"focus"));
    }
});
c.addComponent(cb);