I've noticed some bugs in this game that haven't been too bad, but the the one bug that annoys me is that almost all of my followers have disappeared (Curie, Codsworth, Piper, Dogmeat) my friends and I have had the same problems with this. I would send followers to different locations and they never arrive, I check the places where I first found them and they are not there. Please Bethesda fix this recurring problem as soon as possible!