Can't watch private YouTube video on stock app?

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http://forum.xda-developers.com – Basically, my girlfriend made me a private video and uploaded it to YouTube. She only shared it with my account, and I can't watch the video on the YouTube app. It says the video is private. I can watch it on m.YouTube.com, but I can't download it from there. I googled the problem, but no luck. Any ideas? Thanks. Sent from my SPH-D710 using xda app-developers app (HowTos)