I’ve had this issue for quite a while with the betas on Apple TV and it’s maddening. As I browse through the guide I might click on a show to see more about it. When I back out the whole guide reloads and takes me back to the top of the guide. Really annoying if you are a ways down in the guide.
Also, when I scroll down from the Guide header it often doesn’t highlight the current time block, or as scrolling down it looses track of the current time block. Happens often when you scroll through an hour long show into a half hour and back. So then when you find something you want to watch and click not knowing that you are not on the current time block you have to back out. Which causes the annoying reload.