Hello all! I'm new to sewing leather on an industrial sewing machine and I was wondering if I can get some help figuring out a solution to a problem I'm having with the sewing machine I recently purchased. The machine is a Juki LU-563. I purchased it used from a private seller. I've attached some photos of the issue I'm having because I don't know what the term is for this particular type of problem. The veg tan leather piece is the bottom piece. I'd appreciate any advice on how to fix this problem.