Created attachment 186659 [details] Image showing the incorrect display of the tabbed user interface when Calc is started in unmaximized state. When Calc is started in unmaximized state, the buttons of the tabbed user interface are not displayed, as shown in the attachment. Instead, an empty ribbon appears. The tabbed user interface is displayed correctly only after the Calc window is maximized. The issue does not appear when Calc is started in maximized state.
*** This bug has been marked as a duplicate of bug 140557 ***