I would call MK first thing this morning, and ask them to ship you a new one.
I never use the foot pedal so I can’t help there.
Have you tried using the remote?
Spot lock should not be turning loose until you say so.
One thing to bear in mind, if you are spotlocked and something, say a cord gets under the foot pedal. That will cause SL to quit on its own, since the range of travel was interrupted. Remove the blockage and it will work correctly.
Sent from my iPhone using Crappie.com