Head turn/ layer order question

[stevesbro13]

I've rigged a head to turn to the left and to the right.
I put one ear above the head layer and one ear below the head layer for the turn. When turning the opposite direction, I switch the layer order of the ears. Once the ears do not retain their order for each individual turn, only one. Ex: the right ear is above the head layer when looking left and right. How do I get the layers to go over and under the head for each turn?

[hayasidist]

in the top level group / bone, open the layer settings window, go to the depth sort tab and make sure "enable animated layer order" is checked.

in the timeline move layers up and down in that group as you wish