2018 Forest River Wolfpack315 pack12. Couch slide out is a rack and pinion, drive side outer tube is crowned and slide will not operate properly, it skips as many have experienced. Opposite side will not open completely. Is there any hope That Forest River will help with this known issue? Is there a true permanent fix or do I have a 2018 that is doomed as is my family for the purchase? Tia.