Recently, I seem to have lost the ability to control the time when playing mp.4 video files. When I play these videos, the time bar which lets you jump to different parts of a video is greyed out and it no longer displays the length of the video or where you are up to in playing back the video. I can only play the video from beginning to end, or until i exit the player. This only seems to happen to bunch of mp4. videos but I do not know how these are any different to other mp4 video files which playback fine.
I think it may have arisen following the latest update - but not entirely sure.
Has anyone else had this problem.
Any help would be greatly appreciated.