Groom disappears up close in 5.6.

Hair groom (attached to the head and has binding asset) seems fine when it is at LOD 1 or lower as cards (1st screenshot) but disappears when the camera is close (2nd screenshot).

When a groom asset is created at the root of the blueprint, it looks fine (3rd screenshot).

Skin cache is on and the problem seems to be tied to a specific machine. GPU drivers are up to date and the system is win 10. GPU is RTX 40xx.

Any suggestions? It seems like a bug.