so, if this is a Swchentek branded 'track system', with a motor at the top at both ends, does the front 'stick out' 8 inches at the TOP and BOTTOM both, somewhat equally?
if so, the 'syncing' has not been performed properly, and holding the switch in at the end of the run tends to allow the motors to then continue to 'sync' together. If this is not done each time, the motors can bring one end 'in' before the other, causing this problem.
If the motors are too much out of sync, the slide can actually get to a point where there's no way for the motor to bring in the 'out of sync' end all the way. You would have to run it back ALL THE WAY OUT, while continuing to HOLD the switch for several seconds afterwards, and then run the slide all the way back IN, doing the same. It may take several jogs back and forth to complete the 'sync'.
'14 Thor Palazzo 33.3 compact diesel
KingTailgater2 Dish, 100w/5amps roof SOLAR, BlueOx, 100,000+mi since '14... US, Alaska, and Canada... from GA, then NC, now N AL : )