World Position Offset Material is incorrect when using on Niagara Mesh Particle

Hello! I am working on a simple crow flocking niagara effect and I am trying to create a material that will scale down the wings when they are perched and scale them up when they take flight.

I have a crow model that I added vertex colors to so I can selectively scale parts of the model (seen above). This works great on a model I have added to the scene

My Material:

When I apply the same effect to my niagara system’s meshes it does not look right:

I have tried changing the transform vector node to all different combinations and nothing worked, it only got worse.

Any help in getting the material to work in my Niagara system would be very appreciated. I have to be missing something simple!

Thank you

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