Drawing Layers Gone From Timeline View

I have a complex, multi-pose rig for a puppet. For some reason, when I create a Deformation Chain using the Transformation Switch, The drawing layer associated with it is no longer accessible from the Timeline.

Is anyone else having this issue and, if so… is there a solution?

See the screenshot attached.

Thanks

Because of this issue, I am unable to hide the drawings from the camera view using the little “eyeball” buttons in the timeline AND… I can’t access the parameters to change drawing substitutions on any layer.

Nevermind… I figured it out.