New windshield striped

Hey!
My windshield was recently replaced in the Audi Center.
When I first cleaned, I found that the new disk was not in my own right. is: When the disk is fogged, stripes that cannot be removed become visible. If you glide over the disc from the inside with your fingernail, you can feel slight bumps in the striped areas. The disc was then changed again (culence). With a plate of hot water (put on the amarture board) I tested the new disc. Result: More stripes. Audi then polished the disc and for i.o. ==References== I got a steam duck and drove the car. Disc steamed from the inside and: No improvement, streaky. Now my workshop has already delivered a total of 5 other discs (all Audi original discs), 4 of which are from the same batch. I kindly left my steam duck to the boys. All the windows were striped and always in the same places. Understandably, perplexity is slowly spreading.
Does anyone have a tip or an explanation?
In the meantime, I used to be a disc doctor. There, one was of the opinion production errors in the area of the film between the glass panes, one would not install there (especially since the repair location is of course considerably cheaper than with Audi).
My Kd consultant and I are beginning to dream of striped slices at night - HELP!!