Unreal Engine Issues
Unreal Engine Issues
Investigate Streaming getting disabled on a World Partition map as a side-effect of loading the map as a regular asset
UE - Engine Scaling - Streaming - World Partition - Apr 1, 2025We recently encountered an odd issue where loading into our main world partitioned map would result in a crash caused by all streaming cells getting loaded at the same time. Turns out this was cause ...
Wolrd Partition Foliage Builder - Fails to build with multiple external actor folders.
UE - Engine Scaling - Streaming - World Partition - Apr 1, 2025Hello, We are building a world with world partition & a lot of nanite foliage. We want to modify out Foliage Instance grid size via the commandlet. [Link Removed] Even in a new empty level the c ...
Iris - replication errors for actors in runtime data layer when reconnecting
UE - Engine Scaling - Streaming - Data Layers - Mar 28, 2025It seems like upon reconnecting to the server, the client receives a bunch containing the actor before it has loaded the data layer. See attached log snippet for errors. ...
UDataLayerManager::Initialize perf issue in Editor build
UE - Engine Scaling - Streaming - Data Layers - Mar 24, 2025In editor, WorldDataLayers acceleration table used to map DL Names to DL instances is not created. The main reason was to avoid to handle all the case where it would need to be updated. When UDataL ...
World Partition IsStreamingCompleted returns true while standalone level instances are still fully loading
UE - Engine Scaling - Streaming - World Partition - Mar 21, 2025IsStreamingCompleted returns true while standalone level instances are still fully loading. ...
Scenecapturecomponent not including Niagara effect if custom renderpass is used
UE - Rendering - Features - Mar 20, 2025When using an "FSceneRenderer::CustomRenderPasses", the View never has Distance Field textures assigned. Can it instead reuse the Distance Field clipmap from the main view? ...
Moving a saved duplicate of an OpenWorld level crashes the Editor
UE - Engine Scaling - Streaming - Mar 19, 2025Moving a saved duplicate of an OpenWorld level crashes the Editor. The act of moving the duplicated OpenWorld level crashes the Editor the moment the engine tries to delete the original level, so it ...
Legacy HLOD Nanite Meshes Always Rendering in 5.5
UE - Engine Scaling - Streaming - HLOD - Mar 17, 2025From licensee: We are using the legacy HLOD system in our game. With 5.5 there was a change to FSceneProxyBase::DrawStaticElementsInternal() where the implementation was removed (https://github.com ...
Plugin template WP map missing actors
UE - Engine Scaling - Streaming - World Partition - Mar 17, 2025Packed level actors and Level instances are sometimes not included in HLOD build on a World Partition Level
UE - Engine Scaling - Streaming - HLOD - Mar 14, 2025Context World Partition - Hierarchical Level of Detail (HLOD) system uses custom HLOD Layers to organize large amounts of Static Mesh Actors and generate a single proxy mesh and Material. Problem T ...