Quoted from ATLpb:
1) you clearly have a faulty start button and/or wiring which is receiving pressed commands. Take a look and compare it to one of your other machines, see if it looks physically stuck. Check the wiring, call Stern and have them walk you thru if needed.
2) the flippers are purposely weaker on this machine by default but are also adjustable. Set them to HARD in the adjustments for more power. And HARD still isn’t quite as strong as other new releases in my experience. Note that every time you update code the flippers will revert back to default.
In the new code the lower flippers default to hard I noticed