Did you shoot under florescent or mercury lighting by chance. I’ve had instances where I get the same effect that you are describing except that the pulsation is much longer. I would usually notice it while scrubbing through a scene at high speed. Some lighting fixtures will change their output very slightly when running on AC power, especially the high voltage units used in larger installations. Usually the pulsations are so slow, tied to the frequency of the lower grid, that it’s difficult to notice them. If yours are faster, it might be something different.
Did this camera have a shutter speed different than the other cameras? That can cause the same effect as well.
Just a few thoughts.
Tom