I have my stow / deploy angles set to 70 / 140 respectively.
However, when the actual autolevel process is running, the deploy angle looks closer to 120.
I have checked this by manually setting the angle and comparing to when the autoleveling process is running, it is definitely not correct when autoleveling is going.
This issue has actually caused the printer to descend with the servo arm at an angle, causing the button to miss and the servo arm to break. I had to replace both the arm and the servo.
Is this a Marlin bug?