As others have stated The "perceived drag marks" on the impression trays are the issue. After several attempts I gave up and asked for a refund.
(Minus shipping, trays and putty) in the interim I contacted Brighter Image (who I should have gone with in the first place) . Made my impression and they are on the way with no issue. I suggest to ALL. !!!
Spend the extra few dollars and go with Brighter Image. Insta Smile is a disappointment.
Review about: Instasmile Veneer.
Reason of review: Bad quality.