Registration issues with every design

[cybergal]

Hello, I am brand new to machine embroidery, I received a Brother PE770 as a gift. I've been trying out my machine with some custom snowflake designs (I bought a couple and even tried to make my own) all are being embroidered with the PES file. Unfortunately every design is coming out badly. I'm using a light denim fabric with a medium weight stabilizer. I dealt with bobbin tension earlier and fixed that problem ok...but every single design with an underlay & fill is having what I understand to be "registration issues". I have tried moving my machine to a very stable surface, adding the stabilizer.  If anyone would have a tip that may help I would really appreciate it.

Essentially it looks like the edges bleed or  run away, sticking out from the fill stitches in numerous places. I can't believe 3 different designs all have the problem, so I am assuming it is user error at this point

My next step is to try different fabric/stabilizers.

Thank you and happy Holidays!