Slow motion videos I've recorded seem to only play back in regular speed all of a sudden. The slow motion icon is still there on the video preview but when I open the video it plays back at normal (or slightly sped up) speed and the slo motion 'bar' where you set where it should slow down is not there. Newly made videos still work but everything a week or longer ago has stopped playing back in slow motion. How do I get them back to normal?