I'm not sure how this is happening, but when I log in on my iphone and cast to my Firestick, I get the video from the race I want to see, but end up having sound from one of the other live races at the same time. I am unable to get out of one or the other, so if I want to watch a race, I have to listen to two broadcasts. Anyone else had that problem, and if so, how do I fix it?