I don't know if this problem only appears on my phone, but when I copied and pasted on another place. The app just became really weird when I switched back to the MP app. It asked me for the password again (which was fine), but after I signed in again, nothing seemed to respond, I can type in the toolbar, but nothing appears.. and nothing seemed to be responding. But if I close the app and reopen it, it works again.
Customer support service by UserEcho