Debug view buttons have an inactive area in the middle

Hi,

I'm using QtCreator for a long time but recently an annoying issue started to happen. If I click debug button, the debugger view shows up normally and I start to debug. But if I want to control the execution via buttons on top of the application output view something gets along the way and I can't click around the middle of the buttons. Any of them. Hover effect is also lost.

If I move a little bit to the edges of the buttons, everything turns to normal and I can control them. Hover effect works as expected.

It's like a long rectangular area has been put in the middle of the buttons, has the wrong Z index (on top of them) and lets just remaining upper and lower parts of the buttons below.

This bug is not a show stopper but it is definitely annoying.

Regards,