Yes, I even did "Restart Couatl and rebuild airport cache" and it came back with successful after a few seconds.
You don't say if it works, after you see the "successful" message.
Note that, due to the increase in the number of SimObjects ( because of the multi-liveries ), and of course depending on your system speed, AFTER it has printed the "successful" message, it might still take a while, because it might create the object cache, which is different than the airport cache. The model cache is recreated each time you run the FSDT Live Update, otherwise it never changes.
IF you try to start GSX from the menu before the model cache is ready, it's likely it will become "stuck" but, since there's no separate message to let you know the object cache is ready too, it's best to wait a bit after the "airport cache successful" message before calling the menu.
If you are on an airport with GSX jetways, you can use the appearance of jetways as a cue GSX is ready.