Its certainly a problem for Supersonic Ads. Although it seems confined to the 'standard player' at least om fb. SSA fb booster videos Lynx Black and Chivas the Venture are the most frequent offenders for me atm. And once they 'fail' they just keep recurring.
However, the SSA videos that use another player, the kind used for games/apps adverts, seem to be rewarding correctly - last example was for the Rise of Mythos game.