Debugger exits upon instantiation of WebEngineView QML component

When there is an instantiation of WebEngineView{} in QML, the debugger exits immediately while the process is still alive: it's possible to interact with the window normally.

It doesn't make any difference if QtWebEngine::initialize() has been called or not in main() .

Attaching a sample project that demonstrates the problem. The basis is the new application wizard of QtCreator, with a WebEngineView added in QML. If you uncomment the WebEngineView in main.qml, the debugger exits immediately. Any breakpoint set after the execution of engine.load() in main.cpp:22 is not triggered.

Information about the system: Ubuntu 20.04, gdb 9.2, QtCreator 4.14