If you see a 'Pause' symbol while the video you are trying to view is loading, or currently playing, this simply indicates that the video is buffering, or has just completed buffering.
You do not need to take any actions, as once buffering is completed, the 'Pause' symbol will automatically disappear after approximately 3 seconds.
You can still use this 'Pause' symbol to pause, and then resume playback of the video as you require.