I have found that when hard coding a favorite, make sure you dont hard code the url as HTTP... make sure your phone doesnt auto capitalize these letters... it wouldnt work and i was getting errors until i changed it to "http". now everything works fine (stupid error... lazy coding... dumb dumb dumb).
i get unsupported media e:-12 on nearly everything that i hard code into favorites...
works on xiaa live but not xiaa live pro. its really fun to PAY for an app that doesn't work at all. really really frustrating. and there seems to be no solution but the indignant "works for me" response.
Customer support service by UserEcho