OOPS. I meant to put this in the “Bug Reports” Section. Sorry about that!
I noticed that static meshes that have complex collision, or “Use Complex as Simple” collision, do not show up in the “player collision” view mode.
I’m not sure if this is a bug, or intended behavior.
However, it would be nice if complex collision was visible in the player collision view mode so that I can inspect collision of meshes with complex collision from the main viewport.