Mike - in my first 15-16 trips, I haven't had an issue. In the trip last weekend, I had that exact issue. I fretted all weekend long, worrying if I was going to be able to retract the slide when it was time to pack up.
It came in without a hitch, but sure bothered me.
And, unlike the newer 2013s/2014s - I don't have the manual cranks for the slides. I'd have to do some disassembly to figure out how to get the slide in.