I am using Caron one pound yarn medium 4 on a bulky singer 155. The pattern says to e wrap and then knit 1 row. I do this and the carriage jams every time. I tried changing the tension, cleaning the carriage, checking and changing needles. I have a new sponge bar. I am very new to machine knitting and I don' know anything about hand knitting so I am sure that I am doing something wrong. I am trying to follow Diane Sullivan's. Entrelac. She makes that look easy and fun. HA, HA. Can anyone think of something I am doing wrong. By the way, when I used scrap yarn to practice it did not jam and I believe they are the same thickness. Could it be the yarn ( bought at Joann's) or is it me? Thank you in advance for any help.