u/aunturage

I have a Silhouette Cameo 5. I printed it on matte self-adhesive photo paper and cut it out on a cutting plotter with a knife. I didn't laminate it. But in some places the knife left strange marks that, even without applying force, peel off the top layer if I run my finger over them. Any ideas on what the problem might be? The same paper cut with regular scissors does not roll up like that.