Eye Warping On It's Own

I reopened a finished file after about 3 weeks. And the left eye began to warp as I moved my head. (The camera tracking my face.) It appears only the left eye is warping. The right eye seems fine.. It almost returns to round when I stop. After a while, it begins to warp on it's own like a muscle tick.

The AI file has not been altered or moved. The CA file has not been changed. I literally just opened it. I rechecked all the tags, handles, settings, etc. They seem to be correct and just as I left them. I don't see any new, out-of-place handles. I viewed it with the mesh on. It looks cool but doesn't help narrow down the problem. I turned off the "Eye Gaze" button and it warped permanently until I turned it back on.

The eyes are not indpendent and part of the Head. (Note: Character is single unit — head, torso, legs all one object. "Head" layer is separate from "Body" layer. "Head" layer contains Eyes, Eyebrows, and Mouths. ) The left eye also warps during playback of previoulsy recorded scene. All the other parts of the puppet work fine live and during playback.

I have used this character twice before without incident. I don't want to place blame but glitches have been occurring since the latest AI update. Cool your jets, AI guys! Once a year updates is fine with me. :0 )

I have included screen shots from the Character Animator below. So, any anwsers or suggestions for this occurrrence?