Bones suddenly hiding

When trying to edit bones they mysteriously disappear. The rig still works it's just that you can't see the bones any more. If you click around the area it should be in you can select a bone eventually. Once selected I tried checking and un checking the hide box to no avail. I also tried by selecting the whole armature by clicking on a single pose and in the timeline then in the properties window trying to change the style but this had no affect either. You need to see the bone to really edit the constraints and other factors so it's very annoying.