Bone Layers in Edit Mode are Different Than in Pose Mode I can't figure out why this model won't show all of the bones in pose mode. I think it has to do with the bone layers, but I don't know how to move them. Even with all of the layers selected, only some of the bones appear.

This image shows what pose mode looks like:



And this is what edit mode looks like:



No bones are hidden. Alt-H does nothing. The problem may also be related to bone groups.

Any help would be much appreciated.
It looks like your bones have custom shapes, if you go in Pose mode, select a bone, go in the Properties panel > Bone > Display > Custom Shape, some meshes are used to display the bone in another way than a classic octahedral shape. Press on the little X to delete. I don't think you can delete them all at the same time.