QML ComboBox must click twice in Qt 5.12.2(mingw73_32) (QtQuick.Controls 1.5)

In QtCreator 5.12.2 (mingw73_32), when I select 'Second' option in ComboBox, after that, then I want to select 'Others' CheckBox, but I can not selected the CheckBox in my first Click. I must click twice. But I can selected CheckBox once at QtCreator 5.7.1 (mingw53_32).