Avatar Validating Failed Error

I have been working on avatars for the past 5-6 years. This is the first time I have ever gotten this error. I have tried multiple things to try to resolve this issue and at this point Im running out of ideas.

I’ve restarted projects from the ground up multiple times.

I have RE-installed both Unity and the Creator Companion.

Nothing is working, if anyone has any suggestions at this point I’d be very grateful.

From the console seems like the material using the Particles/additive intensify shader is causing the error can you try changing the materials shader.

The particles shader is causing an error as told above.

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