Hi everyone,

This is the first time i use the promotion functionality in QtDesigner. I designed the main window in QtDesigner, and reserved the right side of it for a custom subclass of QWidget. I tested this custom subclass of QWidget by show it from the main, everything was fine.
After promoting a QWidget to this custom subclass in QtDesigner, the custom widget doesn't show at launch time. Any clue why this could happen?