Videos won't play after using BBC iPlayer

Using the latest firmware, if I have previously been using BBC iPlayer, no video files will play. They will show the busy symbol animating but never start playing. If I restart the device, the videos will then play again.

This has been happening for a long time but it took me some time to narrow down what was causing the playback problem.

Sorry I just found more mentions of this when I searched, I couldn’t find a way to delete this post. Thanks!