Images blurry after sensor cleaning

If the PEC pads are anything like the Zeiss or other lens cleaning papers I use for my eyeglasses and camera eyepieces (I try to avoid getting into a position where I'd have to clean my camera lenses), nothing ever seems to get clean the first or even second time. Almost invariably there's a multicolored haze that requires two, three or even more attempts to completely remove. This is partly due to skin oil on the eyeglasses and eyepiece but I've seen the same problem with multicoated filters on which a few raindrops or condensation had accumulated. It took two or three cleanings to remove the multicolored haze.

If you were careful while cleaning, I'd guess the cleaning solution just left a haze on the sensor then, and you might want to try again. Maybe use less solution this time. Hard to say without seeing an example.