I recently bought an 07 s45 with the 3rd row, before purchase the previous owner sent me pictures of the 2nd row seats folded all the way forward so i know they recently worked, after taking delivery the larger(drivers side) seat no longer folds off the floor, it only folds in half. It appears to be stuck at the floor latches. Has anyone encountered this issue before? and how did you solve it. thanks in advance for any light you could shed on this before i start taking things apart.