While gammaray easily connects to a running Qt5 application, it fails to
connect to a Qt6 application. Gammaray starts and lets me select the process to
attach. After that, it displays the splash screen, but not more. Using ps I can
see that gammaray is running, but does not do anything. When I quit the
application then I get a message box saying that the application was closed and
the connection broken:

"Could not connect to host: remote computer closed connection" (translated from
German "Konnte keine Verbindung zum Host aufbauen. Der entfernte Rechner hat
die Verbindung geschlossen").

I also tried starting the application from gammaray and selected the Qt 6.6
probe, but the same: the application starts, but gammaray does not properly
connect.