As you can see, the crab did not complete yet, instead stopped @161.8 proj. of BC. It is indeed a harmonic move, but not the one to complete the crab. However, I believe that the pattern will complete. This is basic pattern structure and 224 and 161,8 alomost overlap which signifies that this point is important. Well, not every pattern gets completed, they are not 100% accurate as all things in the market.