Yes, my 5.0 would eat the fabric whenever I tried to chain piece. I began to hate that machine and although I have been a "Pfaffie" for years and years, I will never buy another. I traded that thing in on a Viking Saphhire and have been much happier with it. I understand though, they fixed the problems on the 5.5 so hopefully, this will solve your issues. It is way too expensive a machine to be unhappy with!
Michelle