UE5-0 City Sample: can not open map Small_City_LVL

Hi there, can’t open the map Small_City_LVL, just a black screen in the viewport. At the same time Big_City_LVL I can open and the preparing starts. But I don’t feel comfortable to open the big map, because it takes a long time to start and sometimes UE5 crashes during preparing. I still have not been able to use this project in cause of because of the CPU overload and crashes during this process. What could be the problem that the map Small_City_LVL does not work and how to fix it?