One of the commentators mentioned the catching the other day, they put it down to the new type of flood lights they use at these grounds in Dubai, they're downward facing lights that go round the whole diameter of the ground*, not your traditional "crane" type lights, the lighting types means that you only get the light source below the light itself and don't get light pollution in the night sky, so if the ball goes above the floodlights into the night sky and then back down into the lights it's very hard to adjust your eyes too it.
*this isn't the case in the current ground.