Somewhere in the manual, I remember seeing something about a jack may partially retract if it is not under load for some period of time.
I have had that happen, but never when I've confirmed that they had actually were loaded down, carrying weight after leveling.
example.
We are parked in a driveway that is very uneven with a forward slope. in one spot, the auto-level would engage the front levelers, and lift the front. Once we were level it would stop. I found that the right rear had never touched the ground.
After couple of hours, the thing would partially retract.
If I made sure that all four were down and in contact with the ground, then did the leveling manually, it never disengaged.
We then relocated to a spot where all four will engage the ground before the auto-level would set.
No more retractions since then.
