Hello,   a few days ago I installed the version before 1.04 of Zurich v2 and everything was okay. Today I deinstalled Zurich v2 and reinstalled it with the latest version, which was just published.   Now, there seems to be a Cessna-like Propeller-/Engine Sound all around the airport. I have read about a similiar issue in Split X and maybe it had been caused by the AirportController, but I'm not sure anymore. Does anyone have this issue, too? Any ideas what I can d