Just curious:
Why does this work (i.e. auto select the first item)
addAndMakeVisible (syncModeSelector = new ComboBox());
syncModeSelector->addItemList ({"Free", "Synced"}, 2);
syncModeSelector->setSelectedItemIndex (0);
and this not?
addAndMakeVisible (syncModeSelector = new ComboBox());
syncModeSelector->addItemList ({"Free", "Synced"}, 2);
syncModeSelector-> setSelectedId (0);