90 is a 14, which is a pretty heavy needle for nylon, even mult layers. I use a 12 or 14 to stitch webbing with no problem.
I use a 16 for light sail repair, mult layers of 6oz+ Dacron. 18 and 20 for upholstery and heavy canvas.
Is it possible the coating is very sticky like PVC and that is causing the problem. Try a little silicone or Teflon on the needle. Also make sure your technique is correct. Also a sticky coating leads to feed problems which causes needle problems. Play with your pressed foot tension as well.