Me too, and I almost lost my mind tonight, this was a UV filter which had a couple of finger prints on it AFTER being cleaned using Optex LensMate cleaner and then after that I tried a small bottle of Kodak with similar results:
The only thing that got it mostly clear again was going around it for 5 mins with a Lenspen. I can't understand how cleaners can do this.
I guess I'll try the Zeiss, or just go with microfiber since I kind of get the feeling the pad on the end of a LensPen is a small swatch of microfiber.