I’m suffering from the World Partition load/unload bug. I have tried loading again after disabling streaming, but loading one region forces all regions to load. This causes excessive load when editing the Landscape, making it impossible to proceed with the edit.
Since updating the engine to 5.7.2, the reboot hack no longer works. All I can do now is load everything or unload everything. Does anyone know how to deal with this?
Hello there @Extrahdmi!
That sounds like a WP data conflict, most likely due your recent UE update. If the engine is forcing all regions to load, it means a part of your dependencies or data are not working as intended.
Considering the version update, it’s possible that your cache is holding old data from the migration. I would suggest clearing said cache, via closing your project, navigating to it’s main directory, and deleting folders DerivedDataCache and Intermediate/WorldPartition. This should force the engine to rebuild the boundaries of all actors and cells.
Another possibilty, is that one of your actors in he grid is set to “Global”, and affecting close cells. Open the WP editor, check the region you need to load, and use to Outliner to look for any actor that is loaded, but sitting outside the highlighted grid square. Then, check said actor’s Grid Placement, if it shows as Always Loaded, it will force its related cells to stay active, when they shouldn’t.
Apparently there was a bug in the Blueprint brushes that prevented them from being unloaded. I misunderstood because it happened at the same time as the version upgrade. Stopping using Blueprint brushes fixed it.