Got a simple 3-stop Smartrise Hydro but can’t set 1st landing floor level. Second & 3rd landing are fine. Have moved the vane so floor level is in the middle sill-to-sill and relearned the hoist way. Have changed Up/Down stop points but no matter what I set them to, the car always stops at T-0, about 2 inches above the floor. Any ideas? Smartrise has been unable to come up with the fix so far. Thanks