If Youtube videos do not play reload the page, that's a Youtube bug.
Or maybe now, a few years later, it's a new bug ;-)

DJ Vadim - The Terrorist feat Motion Man

Randa - Rangers

Run The Jewels - Lie, Cheat, Steal

Run the Jewels - Oh My Darling (Don't Cry)

Beardyman feat. Foreign Beggars - OH!