I just recently started embroidering. When I'm using rayon I didn't have too much problems but I had a lot using polyester serger thread(which is old). I saw on here last week that the thread may be to dry and you can use different tips for this. The one I remember is putting it in a bag and putting it in the freezer. I don't know if it works yet but I have a spool in there now for when I start my next free standing lace ornaments.