Hello, problems arise when rendering XGen hair. In the viewport, the eyebrows are positioned correctly, when rendering with the help of Arnold, the hairs appear not on the geometry, but inside it, a little further.
I must say that for a simple project in the form of a sphere with hair, this error does not arise.
I've tried scaling the whole geometry, but it didn't help.
I left the render and viewport pictures in the attachments.
1 - Viewport
2 - Arnold