Landscape loaded at startup with World Partition


I’ve some issues with World Partition system of UE5. Every time I open my project, my landscape is unloaded, and I’ve to load it entire manually (right click and load unloaded actor, see pic below).

I tried to go to Visibility > ‘Show Selected at Startup’ on each actor loaded, and ‘Show all at Startup’ option too, but it doesn’t work.

What I’m doing wrong? Or it’s bugged?