Have you tried as a test with the powerheads turned off? The amount of air escaping is not really that much, some bubbles are going to escape but typically they just rise up beside the skimmer and don't blow all over. It looks like the flow by and under the skimmer is quite high and carrying the bubbles around the tank, if the skimmer position was quieter flow wise, they would just rise up. If that solves it, moving the pumps is likely the solution. Especially if the flow is strong under the skimmer, bubbles get drawn out and blown around the tank.