I also had a problem with Block #2. I'm afraid my centers are not aligned correctly either, but after three trys, I just figured that no one would notice it in the final quilt. There is just so much fabric in the center it is a real trial. It stays not totally aligned. Glad I'm not a perfectionist! I have just the first two done. I have picked out the fabric for my next two blocks, and am ready to cut them out.
I'm not ahead of the game, like so many of you. I just focus on the two blocks for each week at a time. That way I get to do the whole process each week. I like to do it that way.