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 ;-)

Mampintsha - Phakamisa ft. CampMasters

SPHEctacula and DJ Naves ft Beast, TipCee and DJ Tira - Bhampa

Nuz Queen - Laze Lavuka iDimoni Lami

Leo Justi - O Homem Mau (Sniper Queen)

VEE 303 - Wounded