I had that happen on my first longarming quilt. I left the creases in. It was barely noticeable after the quilt was finished, probably only by me, and I was hard pressed to find the area after the quilt was washed. I haven’t seen the quilt recently, but I think that area blends in more with each washing. My advice is to leave as is and chalk it up to experience. The batting in my quilt, by the way, was Warm and Natural.