Let me first off by saying that you are not alone and that I feel your pain. This is my first post on Pinside as I normally just read through forums but don’t ever chime in. I received my Jpp on 7/14/2020 and finally after replacing several boards and the T-Rex I feel like I finally got it working 100% yesterday 9/8/2020... knock on wood. I won’t go into a ton of detail unless requested but just know that you are not alone. One thing I would check is that when the T.Rex is thrashing that his jaw isn’t hitting the left ramp. I noticed that sometimes my rex’s jaw would hang a little low ... just enough to hit the ramp and mess with his center position. I had to adjust the lower plate behind the rex in order to raise him enough to clear the ramp. My old Rex wouldn’t keep the ball in his mouth.... I suspect the magnet went bad. I spent nearly 8 k on a new in box pinball machine which gave me problems pretty much since day 1. I don’t mind working on pins as a hobby but to spend that kind of money on a brand new machine I expected perfection. Maybe that’s not the reality with pinball machines but again I expected perfection for that kind of money. Thank god for their tech support (Pablo) and the six month warranty or I would have been SOL. Now that its finally up to snuff I am enjoying it. The highlight for me is the six ball chaos mode... yesterday I was killing it... smacking all the balls through just about every way they could go... ramps , orbits , control room.. everything...it was awesome and I swear it lasted like 10 minutes... I was wore out but felt so satisfied blowing up the machine like that and having everything go crazy. Anyway I don’t want to ramble on to much but just wanted to let you know that your not alone with these issues. Thanks for reading