Google Cast Video Player becomes unresponsive after network error

Question

I am working on a Chromecast custom receiver app, built on top of the sample app provided by Google (sampleplayer.CastPlayer)

The app manages a playlist, I would like the player to move on to the next item in the list after a video fails to play for whatever reason.

I am running into a situation where, after a video fails to load because of a network error, the player becomes unresponsive: in the 'onError_()' handler, my custom code will do this

var queueLoadRequest = ...
var mediaManager = ...
setTimeout (function(){mediaManager.queueLoad(queueLoadRequest)}), 5000

...the player does receive the LOAD event according to the receiver logs, but nothing happens on the screen, the player's status remains IDLEand the mediaManager.getMediaQueue().getItems() remains undefined. Same result trying to use the client controller to try to load a different video.

I have tried to recover with mediaManager.resetMediaElement() and player.reset() in the onError_ handler, but no luck.

For reference, here is a screenshot of the logs (filtered for errors only) leading up to the player becoming unresponsive. Note that I am not interested in fixing the original error, what I need to figure out is how to recover from it:

My custom code is most likely responsible for the issue, however after spending many hours + stripping the custom code to a bare minimum in an effort to isolate the responsible bit of code, I have not made any progress. I am not looking for a fix but rather for some guidance in troubleshooting the root cause: what could possibly cause the Player to become unresponsive? or alternatively how can one recover from an unresponsive Player?