When the ExoPlayer encounters a BehindLiveWindowException error, there is no experience score.

[TravisLiao]

Hi, when the player is playing HLS live stream, if the network is not good, it is easy to encounter BehindLiveWindowException. At this time, the player can play successfully by retrying when the network recovers. However, in this case, there will be no experience score.
I think there should also be an experience score at this time, because the user may have been playing for a long time, and the overall experience is relatively smooth.