Default unresponsive camera after recording video

Hi guys. Today I wad recording some videos in my g2 and I noticed that when I pressed stop button, the recording button became gray and I couldn't use the camera for a while, it was not uses to do this before. I rebooted and the same happened after a video. So what could be this problem? I am full stock jelly bean 4.2.2. I think was the video being written to storage but this never happened before and I have more than 4gb free. And everytime I record in 1080p and 60fps. My last video was 578mb.