It seems that I broke Blender again
I accidently hid a bone in Edit mode and deselected it.
Now I can’t find a way to get it back visible.
Using the Outliner to select it, the “Armature Bones”
stays empty and even the “unhide” option in the
context menu in the Outliner shows now effect.
The bone is not deleted, since the IK chain it belongs to still works.
Any ideas how to get it back? Would hate to redo half the rig just
because of that.