If I am thinking right, that set of jacks is "self centering" meaning the pivot floats and one pad may hit the ground before the other one. lt's normal and doesnt hurt anything. next time try this:
Have the other half push the button to extend and hold one of the jacks in the retracted position. The other jack can touch the ground before there is any pressure to lower the one your trying to hold up.
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.