[Qt-creator] QtCreator doesn't painted in Kubuntu 16.10

[Igor Mironchik]

Hello,

I freshly installed Kubuntu 16.10 and Qt with online installer. But when 
I launched QtCreator I didn't see anything instead of window border and 
title. When I clicked where File menu should be I saw menu. Look.

Menu

When I chose project I saw configure page, but menu still doesn't 
painted. Look


Configure page

What can be the problem and how to solve it? Thank you. And I have to 
say that on Kubuntu 16.04 everything was fine.
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