I, like many others, have experienced the so called "Lippert Pop" in our hydraulic leveling systems.  Today I used an old school carpenters level to manually level my 41 foot, 5 slide, 5th wheel.  After manually leveling it, I reset the zero level setting on the "Level Up" auto leveling system.  Interestingly, the  "Lippert Pop" has GREATLY diminished.  You might try that for yourselves.