The static mesh "PhotorealEyeGeo" does not show up in the 4.20 version of this sample project.
Found in CL# 4369336 and 4.21 CL#4534309 in the game-dev launcher
This is a regression.
The mesh is missing
The mesh would be included
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-66115 in the post.