I've been successfully running PWI on Crossover Games for mac (9.2.0) for almost a year now. However, with the latest patch (505, I've had no problems running PWI with the latest expansion, just after this update), I've been unable to get the client to run. I used to open and run elementclient.exe directly, but now when I try to do so, the mini icon merely bounces for a while then disappears without starting the client or an error message. The patcher itself errors after hitting the start button, though this had never stopped the client itself from opening before.