Crash on QWebEngineView::setPage() with app-sandbox entitlements

[developer23]

Hi,

I build application on macOS with QtWebEngineProcess inside application's bundle. After build it's codesigned with app-sandbox entitlements. During execution application crashes on QWebEngineView::setPage(), but if I launch it with QT_DISABLE_SANDBOX then it works fine.

What reasoun could be for this incorrect behaviour?