I've had my BM66 NIB with an Oct 22, 2020 build date since early November. It is my first pin. Right out of the box, the top half of the playfield did not work. So, I flip up the field and checked all the connections by pressing gently on each connection I could get my hands to. I slid the playfield back in place and it worked. 30 to 40 plays later, the top half of the playfield went out again. "Node board 9 not found" is the error message displayed and this has gone on since ownership. I emailed Stern and eventually they shipped me a new Node Board 9 and I replaced it with the new one. Guess what? It didn't fix the damn thing! So, I go and check all the connections underneath again, replaced everything back to normal and it worked! Yes! My wife is happy and we get a great 30 to 40 games in and then it happened again. Did I buy a $7600 lemon? I just noticed that the ball lands in the top right eject when it flakes out. It does not flake out every time it lands in the eject, just when the game eventually dies, the ball is always in the top right scoop. Any ideas on which connector could be the culprit? By Stern's request, I disconnect and reconnect as many node cables on both Node 8 and Node 9 that I can get to and that usually solves the problem for a short while, but what a pain in the ass! I am beyond frustrated.