I had one spray basted quilt do that to me. I used 505 on it and it had a cotton batting. It hasn’t happened since and the only reasons I could think of were maybe a. I didn’t shake the can well before spraying, or b. I began quilting it immediately after spraying and the spray wasn’t sufficiently dry...
I’ve used 505 on dream green batting (made from recycled water bottles) and it worked just fine. Not sure if the dream green would behave the same as polyester battings...
Rob