iOS: Debugger: Sometimes progress indicator is still shown after debugging has finished

I have no reliable way to reproduce, but normally I've done:

• create/open Qt Widgets Application
• add a QPushButton onto the default generated MainWindow
• right click onto the button -> 'Go To Slot' -> 'clicked()'
• add a qDebug() statement into this function (and the respective include)
• start debugging without setting breakpoints
• hit the button several times after the debugger and the inferior have come up
• hit the 'Stop' button (of Application Output panel)

Current result:

• progress indicator (on Locals & Expressions) is still shown

Note: don't know if it helps, but added the debug log