Problems Windscreen wiper V/XC70 III

Hi, everybody. My XC70 has a phenomenon that makes me quite stunned now. Since the pick-up at the wipe, always light stripes remain directly in the viewing area. As with older wipers, which I have always had exchanged directly with such signs. Important: For at least 10 years I have always had this done, which probably always used original spare parts for me. There were never any problems. Anyway, I have claimed this several times, the wipers were changed several times (4 – 5 times), in the summer even the whole mechanics. Without improvement. Another recommended to have the disc changed… Had now complained about it in connection with other problems at VCG in Cologne, then the nice man on the phone told me immediately that the problem was known in Sweden and one would work with high pressure on it. There should be a solution there at short notice… The interesting thing about it is that I had the problem yesterday I was so annoyed by it that, contrary to my habit, I just got some Airtwin wipers from Bosch. Mounted, problem solved! I wonder, what do they do??? Does one of you have the same problem? Greetings P.com