They do that from time to time, I'm not sure why. I guess it's common enough that nobody thinks to comment on it.Still building it out of order. Feet are done, working my way up the legs - bag 4 for the first leg was fine. For some reason, there were two bags for bag 5 . . . had me seriously worried that I was missing a bunch of parts until I started digging through the box again. Didn't see that come up on the Brothers Brick or Brickset reviews, but, I didn't read through all the comments, so I may have missed it there.