Issue with html 5 video re-play in qgraphicswebview

There is a video in the html 5 page embedded within <video> in it.

The videos plays without any issue for the first time. When re-play the video for the 2nd time, the videos is not displayed also the time frame indicator too not moving. But audio is being played even in the 2nd time.

Only in qgraphicswebview, I am facing this issue, it's working properly in chrome , safari.

kindly help me resolve this issue.

Similar issue is also faced with audio player as well.