Song playlist stops randomly

[brothom 190]

When listening to songs via the web player, the webplayer sometimes just "stops" at the end of the song, which looks like this:

I've been trying to localise the cause of this issue but so far, all I've noticed were a number of "Uncaught (in promise)" messages:

22/#!/videoosd/videoosd.html:1 Uncaught (in promise) undefined

Pressing play produces the following console log:

basehtmlplayer.js:1 Uncaught (in promise) NotSupportedError: The element has no supported sources.
BaseHtmlPlayer.unpause	@	basehtmlplayer.js:1
PlaybackManager.unpause	@	playbackmanager.js:1
PlaybackManager.playPause	@	playbackmanager.js:1
(anonymous)	@	videoosd.js:1

This issue doesn't seem to only occur when the tab is out of focus. I've kept the tab on-screen on another monitor but still the player eventually gave up.

Pressing the "next" or "previous" song buttons bring the player back to life. It's pretty annoying because I'm trying to use this as background music but have to walk over to my PC every now and then to manually go to the next song.

This time it gave up after exactly 20 songs. I'll keep a count when it happens again.