Iggy I am sorry to hear that you are having issues with your new saw.
I have a couple of questions, bear with me. What blade are you using and is the tension giving you the classic "C" sound? I ask this because on my older Hawk if the tension gets too loose I get more noise and vibration especially at higher speeds. With your puzzle parts not coming out, did you put a square on the edge?, is it bowed or is it beveled?
Bowed will be either too low a tension or pushing sideways. beveled is the obvious table not square to the table.
I know you are not new to scrolling so I hope you are not offended by my basic questions.
This trouble you are having with your saw are very disappointing to me almost as much as the frustration you are feeling.