Using Webengine, the web page is not displayed (some computers display normally, while others do not)

m_jwebchannel = new Jwebchannel(this);
m_webChannel = new QWebChannel(this);
m_webChannel->registerObject("context", m_jwebchannel);

m_webEngineView = new QWebEngineView(this);
m_webEngineView->page()->setWebChannel(m_webChannel);
m_webEngineView->page()->load(QUrl("file:///dist/about.html"));

The web page seems to be hidden，By selecting with the mouse, you can see the content