Camera not showing active view when taking picture

Hi ,
I have HTC one which I have been using for the last one month, this morning I wanted to take a snap and discovered the camera won't show active site, like when I move the phone, the view is not capturing the real sight, it keeps locked on the first view before I moved the phone, the shutter is working fine when I press the capture icon, what could be the problem? Settings are okay, How can I get it working okay?
