Enter another video that is also marked as a live stream (that ended two days ago in this case, and furthermore wasn't playable — unresponsive play button over a black screen)
Background the app
Foreground the app. The video that played in the mini player is now shown in the live view above a completely unrelated chat log.
You'll also find that tapping the mini player after this will take you to the live view, again associating the video with an unrelated chat log.
You'll also find that tapping the mini player after this will take you to the live view, again associating the video with an unrelated chat log.