I've run into a couple of annoying bugs in Chromecast with Netflix. I often pause playback part way through a show. The Chromecast device times out after a period of inactivity when playback is paused. The Chromecast then refuses to respond when subsequently attempting to resume casting from the same device. One way to recover is to turn the TV off and on, resetting the Chromecast. An associated bug is that the Chromecast then loses the place where it was paused, essentially going back to the start of the previous session. With series shows, that could mean not only losing the place in the current episode but being thrown back to a previous episode.