When scrolling through clips the view of the footage reduces down to a small

square area of the total view, meaning i cant see the whole cam view when scrolling through the clips. Which is mega annoying when you just want to see the whole view and skip through quickly to see if anything major happened that day. Never used to do it until a month or two ago i believe. I use an iphone and have deleted the app and re downloaded it too and still does it. Must be something caused by an update? Please help