Saving to MHTML while printing to PDF crashes with SIGSEGV

m_tabWidget->currentWebView()->page()->printToPdf("/tmp/file.pdf");
m_tabWidget->currentWebView()->page()->save("/tmp/file.mhtml");

1  base::Value::Clone                                           values.cc                                   296
2  QtWebEngineCore::PrintViewManagerQt::RequestPrintPreview     print_view_manager_qt.cpp                   345 
3  printing::mojom::PrintManagerHostStubDispatch::Accept        print.mojom.cc                              5792 
4  mojo::InterfaceEndpointClient::HandleValidatedMessage        interface_endpoint_client.cc                952
5  mojo::MessageDispatcher::Accept                              message_dispatcher.cc                       48