HTC One M7 :: Phone Camera Or Incorrect Setting

I have had my HTC One (AT&T and stock) for about 3 months and the camera has been working normally until this past weekend. I haven't taken a lot of pics with it but when I have used it, the camera always turned on and you could see what ever you were trying to take a picture of in the display. Then, I would touch the camera icon and it would take the picture. But now, when I turn the camera function on, it shows a static image of whatever it was that the lens was looking at when I turned the camera on. It no longer shows an active view of what I'm aiming the camera lens at. I can still hit the shutter button and it still takes a picture but I don't know what I took a picture of exactly until I touch the new picture to open it up in the display.