I just got my new SS 4x4 v4(I think) from thecubicle.us today, and the other cubes I got are great. But the 4x4 has some internal catching and is locking up because of it during solves. Is that just extra flash on some of the pieces and needs to be broken in? Or is something wrong with it? Do new SS 4x4 v4's usually have this extra flash on pieces? Thanks!