There is something that I haven't clarified yet. You are using the Dynamics operator on top of hair, this means you are simulation ONLY the hairs that are being shown in the viewport (Viewport Count Fraction), not the full hair: If, for example, you have 4 hair strands in the viewport the Dynamics operator is simulation 4 hair strands ONLY, this means that the hair and simulation will look different because Redshift is using the Render Count at render time (which equals to more hairs), not the Viewport Count.

While Dynamics is simulation 4 hair strands, you are rendering 8 hair strands, there will be 4 hair strands that are not following the simulation in the render. This is why I suggested you to use the Dynamics operator ON top of the guides only, not hairs, this way Ornatrix will interpolate the remaining hairs at render time.

This is how your hair stack should look:

See how the render and the simulation looks exactly the same:

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Attached Files:

Jeordanis Figuereo (Product Designer. EPHERE Inc.)