I use 505 all the time & have not experienced this problem.
Did you spray heavily? I spray lightly, with a quick side to side motion, onn the batting.
I roll my quilt up, starting at the top align it, & begin to slowly unroll, smoothing, as I go. I find there are less puckers this way.
I do the back first, then turn the backing down, spray the batting again & do the front.
I don' t spray all the way to the edge, usually stop 4-5 " from it. Maybe when you sprayed, some got on the back of the quilt which is hanging it up?