Debug line/sphere not showing in Persistent Level

Debug drawings, like sphere or line, are not rendered inside the Persistent Level when drawn from within a streamed in level.

I have a Persistent Level which contains another Streaming Level (set to always streamed). When I start the game directly into to streaming level the drawings show up normally. If I start the game into the Persistent Level they aren’t.

The origin of the Persistent Level is moved down the Z-Axis. If I move it to Z=0.0f the drawings appear. What I don’t understand: The Actor which draws the symbols is inside the Streaming Level and drawn correctly. The debug symbols are just drawn at the Actors’ location (GetActorLocation() ).