Need Help Summa s2 T160 Long Wall Vinyl Cut help!

[Tuanny]

Hello new to the machine Im trying to cut 2 long pieces of wall vinyl 24" inches each on a 54" wide roll about 200" long but im having trouble as the paper is going back and forth a lot and falls off the backing and machine gets jammed. I lowered the knife pressure by a lot and and the horizontal cuts seems to be fine as i have to put lots of force to punch it out but the vertical cuts seems deeper and kind of comes out the backing more easily and jams the machine. Printing small stuff like stickers works fine as the paper just goes back and forth a bit but since this one is a long cut im having issues.
Any suggestions or ideas on what i should be doing?

Thanks.

 

[Tuanny]

nvm I think I figured it out. I didn't set the flex cut correctly so the paper was not bridging