That’s interesting! Anything disabled via streaming is still usually visible in the outliner but is greyed out and has an (unloaded) tag. Though we’ll check that first anyway, then maybe kill distance.
Head into your world settings and check for World Partition Setup:
If it’s there, we’re gonna need to go over to the World Partition Window (if it’s there, otherwise go to the top and open it via the Window bar) then box select all of your level then right click and Load it.

