Kinda sounds like it’s seeing floor positions when it’s not supposed to. On a more than one speed run see if car is rolling back and your getting a double blip on first floor as it takes off. Try slowing down the acceleration. Like your 61 30 on off and on again before it reaches
The next floor. There is supposed to to be rope compensation weight installed . They normally get thrown out . Problem I have had before
Had to add weight to car and rebalance. Ropes not biting in undercut
Enough and car will slip coming down especially near the top half of shaft same thing if you increase I and p factor car will go into pit empty. Weight and acceleration / deceleration. Goood luck