Sorry have read the posts before only with one eye.
Maybe the car guides is worn out or the distance between the rails at the bottom terminal is too big and therefore the pickup stop is too late.
Next steps:
Check the speed, deceleration.
Loadweighing.
some information:
https://1drv.ms/f/s!Arj9j2ORAi8Ah6pvNl3IMC4m9bH87Q?e=QztTw5
PW s. PM