You're cutting all the way through the material? That's the problem. Roll cutters aren't made to do that. And when you do need to cut all the way through, you need to use the perf cut feature which cuts essentially a dotted line so you can punch out the decal afterwards.
That's a concern. I had assumed you could elect what style of cut to use and if you want a full cut, you can do it. Perf cut will definitely not work for me as I need the edges to be nice and smooth.
Thanks for the insight!