Hi Eric,
What you’re seeing is an actor (so a blueprint) with multiple static mesh components. Those components are set as being visible (or not!) when the game is being played.
That said, our environment artist has a level where there are no actors at all, it’s just static meshes - and the problem occurs there too.
If you think it would help you to track it down, I can send you assets and/or anything else in order to reproduce this issue!