I'm curious that you say you "de-learned the squat"
What are you doing that is allowing your deadlift to go up and squat go down? (by this I mean are you deadlifting more and squating less then usual?)
What do you to to bring up your squat?
If your deadlifting more often and/or squating less I would say it could be a form problem due to lack of practice or possible your lower back is fatiqued when you are squatting.
In any event getting your form right is ALWAYS a good idea. Also I would look at your training and see what else could be effecting your squat. If you keep a good log look back at a time when your squat was going up and compare it to what your doing now.
Specializing in a certain lift, even if not intentional isn't a bad thing unless it starts negativly effecting your other lifts. I would seriously look at your training and figure out what is causing you problems.