Default Unable to regain chromecast youtube tv queue/session after reconnection

My CC is not rooted, build 14975 . When connecting to youtube and setting up a bunch of videos in TV queue by smartphone youtube, then the phone stays idle/sleep mode . After a while, trying to reconnect to CC again, either add or remove videos in the TV queue, half of the time it can reconnect fine and regain the session/ tv queue as well as the current video is still playing. However, half of the other time, it just shows the default youtube screen, kills the playing video, and erase all the tv queue. Does anyone have a fix for it ? TIA