VRChat expressions or toggles not working: FX layer weight is 0 - fix

Want it checked automatically? Avatar Setup Doctor checks your parameters and animator layers in one click - free version. Try it free

What you see on screen:

What it means

A layer in the FX animator still has its Weight set to 0. A layer with weight 0 has no visible effect, no matter what you put in it.

Common causes

• You added a layer yourself and left the weight at 0
• The animator was duplicated or rebuilt

How to fix it

1. In the Animator window, open the animator set as FX on the Avatar Descriptor
2. Click the gear icon on the layer that doesn't work
3. Set Weight to 1 (you can ignore the top layer)

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 hand gestures not working (face or hands don't change)
• 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