I noticed that the error was actually in the larger center portion and so now I had to take out the two double pieces on both sides of the center. Hence actually making more work for myself than what I had to start with!
So because I am stubborn I took those two pieces out and then decide to retake the middle part off and piece it all together and put it back as one unit. So FINALLY I have a good block. (And if you see anything wrong with it, please don't tell me, LOL).