On Thursday 08 October 2015 22:27:10 Igor Mironchik wrote: > ==4094== by 0xDC4D180: QXcbWindow::hide() (in > /home/igor/Qt/5.5/gcc_64/lib/libQt5XcbQpa.so.5.5.0) I meant a debug build of Qt, not of your application. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center