Qt 5.7 Multiply web views and subsystem:console

[cr0_]

Hi, i have next simple code:

#include <QtWidgets/QApplication>
#include <QtWebEngineWidgets/QWebEngineView>

int main(int argc, char *argv[])
{ 
#ifdef QT_DEBUG
	qputenv("QTWEBENGINE_REMOTE_DEBUGGING", "23654");
	#pragma comment(linker, "/subsystem:console")
#endif

	QApplication application(argc, argv);

	QWebEngineView view1_;
	view1_.load(QUrl("http://google.com"));
	QWebEngineView view2_;
	view2_.load(QUrl("http://google.com"));
	QWebEngineView view3_;
	view3_.load(QUrl("http://google.com"));
	QWebEngineView view4_;
	view4_.load(QUrl("http://google.com"));

	return application.exec();
}

I use subsystem:console for seeing debug messages. If i close console window I am getting next assert error: http://prntscr.com/c9034s
It reproduces really often. Is it Qt bug, or I don't know some rules of creating multiply web views?

Thanks.