Unreal Engine Issues and Bug Tracker (UE-190680)

Steps to Reproduce

Download the attached licensee repo.
Open the map /Content/issue_groom_cull/LV_main.umap
Position the camera to block visibility to the groom components (or, turn the camera so that they are behind the view).
Use freeze rendering to confirm they are culled and not rendered
Open and capture with the GPU Visualizer (Ctrl+Shift+,), and search for “hair”
Observe hair strand interpolation and other updates are still happening, on a
per-component basis

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-190680 in the post.

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By Design

Hair Culled but still evaluated