Hi all. I created blank project. Make new level, no light at all. Trying import any highmap (from gaea or internet) and I saw nice preview -
but after I import I got this.
i tried this files -
or
Its UE 5.6
windows 11_x64. i7-11800H, 3080 RTX
The thing was at World Partition .
The whole imported group was “unloaded” and I may press right mouse button and set “force load”. Then some part of terrain will show. This is about optimisation from World Partition. You can disable this with Window → World Settings, but then all terrain will be single file and not optinam. Anyway thx all for help. 