I have my account linked to facebook, but I was already logged in before the 5.2.2 update so was able to log in the normal way on both the bluestacks emulator and my phone. I haven't tried to log in using the 5.2.2 method.You guys can play normally on mod? With no Facebook login issue? Successfully install the 5.2.2 version? Or are you saving the progress on device?
If your device is rooted, you might be able to log in with the facebook app and an unsigned version of this mod, but I haven't tested it yet.