If you pull out or try to push in the foot rest
with the slideout in, that raises the sofa up higher than what it is if when the slideout is extended. You have to lift the foot rest up & make sure it is over the 2 fingers. When latching the footrest, have the release latch operated until just before latchup.
I sleep on the sofa every night, so I do this everyday! You don't know if the footrest is latched, unless you are on the move.