@ecwoods805 the pattern is not wrong, the strings just don't line up because the strings b and c switch places. Once you reach the last row, you just start in the first row again, but your b is now c and your c is now b.
Why isn't the pattern finished? I'm new to reading the patterns and I would have to start it to see if I could figure it out but I'm hoping that someone can explain the next few rows so I can attempt this pattern. Thank you.