VRChat eyes twitching / blinking during a closed-eye expression - fix

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What you see on screen:

What it means

The closed-eye expression is fighting with the avatar's automatic blinking. Even when your expression closes the eyes, auto-blink moves the same blendshape, so the eyes twitch or open.

Common causes

• You made or added a closed-eye or half-closed-eye expression
• The expression animation has no setting to stop blinking (Tracking Control)

How to fix it

1. Select the closed-eye expression state in the Animator
2. Add Behaviour > VRC Animator Tracking Control, and set Eyes & Eyelids to Animation
3. In the state that returns to the normal face, set it back to Tracking

Before you change anything, make a full copy of your project folder so you can go back.

Related errors

• VRChat "This avatar uses a mixture of Write Defaults"
• VRChat expressions or toggles not working: FX layer weight is 0
• VRChat radial menu blendshape won't go to 100 or looks steppy for others (float sync and limits)
• VRChat toggles not syncing for others (only you can see the change)

See other errors