Most air bag suspensions have 2 ride height valves on one axle, and only one on the other axle. This could be a ride height adjustment issue.
For example, if the motorhome has two valves on the rear axle, and only one on the front (both front air bags will be tied together for air pressure), and the passenger rear ride height valve is set too high, the result will be the driver's side front will be too low.
It's an easy fix.
Fred & Vicki
St. Augustine, Fl.