I have been cutting oracal vinyl for a long while with no issues until I starting cutting heat transfer. I am using Cad-cut fashion film and the vinyl wants to roll up and miss sections especially near the edges. I have lowered my speed and pressure as much as I can to cut the vinyl. I called UScutter and they suggested I run two passed. That works a bit better but I'm still having the issue and it takes more time to cut with that option. I attached a pic to give you an idea whats happening while cutting. Thanks