Unreal Engine Issues
Unreal Engine Issues
VirtualHeightfieldMesh shadow issues
UE - Graphics Features - Apr 19, 2022A UDN reported ensure being encountered with VirtualHeightFieldMesh rendering on UE5. Those ensures remain an issue on 5.1 (UE5/Main) as of CL 19779838. [Link Removed] Attempting to repro on PC, th ...
Actor Foliage can't be added to Foliage Paint or Single with World Partition maps
UE - World Creation - Worldbuilding Tools - Foliage - Apr 18, 2022Actor Foliage can't be added to Foliage Paint or Single with World Partition maps. ...
Asset localization does not work properly for Paper2D related assets such as Flipbook
UE - Foundation - Mar 18, 2022This issue is resolved by changing Paper2D's LoadingPhase to PostConfigInit, but this is a workaround. We suggest a better long term fix via AssetRegistry changes (see comments). In the default la ...
Cook failure when World Partition maps have level instances using level blueprints
UE - World Creation - Worldbuilding Tools - Level Instances - Mar 14, 2022The following cook error results from attempting to package a WP map that has level instances using level BPs: LogCook: Error: PackageSplitter found the Generator package still in memory after it ...
ChunkDownloader does not support Apple's On-Demand Resources
UE - Platform - Apple - Mar 11, 2022ChunkDownloader etc are meant to work with your own hosting or CDN, ie something you can download with a https:// URL. Even though [Link Removed] system does appear to be https, ChunkDownloader does ...
FEditorFileUtils::SaveCurrentLevel returns true even when it fails
UE - World Creation - Worldbuilding Tools - Feb 25, 2022In FEditorFileUtils::SaveCurrentLevel, we set the default return code as true (success) before checking validity of the current level or seeing if PromptToCheckoutLevels is successful. If we're unab ...
VertexInterpolators allocate unused params which generate extra shader ops
UE - Rendering Architecture - Materials - Feb 17, 2022As a follow up on this: https://udn.unrealengine.com/s/question/0D54z00006yxUdXCAU/vertexinterpolators-problem VertexInterpolators are added to the HLSL code even if unused and you demand the HLSL ...
Editor lighting components not displaying correctly with diffuse off with lumen enabled
UE - Graphics Features - Lumen - Feb 2, 2022Licensee note: "I haven’t tested with Ray tracing. I currently have lumen enable and it’s occurring there." ...
Specific Blend Mode of Material on UMG render incorrectly when HDR is enabled
UE - Graphics Features - Jan 27, 2022This issue occurs with the Additive and Alpha Holdout settings. ...
Alembic Caches Not Working With Lumen
UE - Graphics Features - Lumen - Jan 20, 2022It appears that Alembic caches do not influence Lumen's indirect lighting (except for shadowing). Alembic geometry caches should influence lighting in Lumen as any other geometry in a level. I hav ...