Level streaming bug?

I have a big map and so I use world composition to stream the tiled landscape, and origin rebasing, I then have added a new map called ‘level 1’ that will serve as level 1.

When I load the nearest landscape and level 1 in the editor everything shows up fine in game, however when I only load the landscape the actors don’t show up, even though the level is streamed in the editor window. To be fair I have at occasions seen the actors flying uncontrollably in the game though.

Why do the level only work when I load both landscape and the level together befor playing?

Level and landscape loaded before play

It shows up fine

Only landscape is loaded before play, nothing shows up