It's the same yarn. It's coming along fine on DPNs, but I want to know how the pattern maker managed it! I don't know where the pattern came from. It's on this neat cardstock card with a picture of the pattern on the front, directions on the inside, & yarn credit on the back.
The pattern says "It will be a little tight at first but loosen up after the first round." That sounds normal, but I don't think so tight the fibers in the yarn split causing the yarn to break before you join is correct.