Unreal Engine Issues
Unreal Engine Issues
HDR (eye adaptation) visualization has incorrect output when Allow static lighting is disabled
UE - Graphics Features - Mar 19, 2025Licensees have reported that this issue occurs in UE 5.5 and does not appear to occur in UE 5.4 or with Substrate enabled. ...
Legacy HLOD Nanite Meshes Always Rendering in 5.5
UE - World Creation - Worldbuilding Tools - 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 - World Creation - Worldbuilding Tools - World Partition - Mar 17, 2025Packed level actors and Level instances are sometimes not included in HLOD build on a World Partition Level
UE - World Creation - Worldbuilding Tools - 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 ...
FJsonObjectConverter::ExportCallback_WriteISO8601Dates allows for writing FDateTime that does not have ticks
UE - CoreTech - Mar 12, 2025Context: `FJsonObjectConverter` is a built-in UE class that makes it easy to convert JSON objects to and from UStructs, including `FDateTime`, which implements a date and time. Problem: An uniniti ...
GPU crash accessing Scene_GPUScene_GPUScenePrimitiveSceneData
UE - Rendering Architecture - RHI - Mar 11, 2025Incorrect derivative ops detection when Add node is used with Nanite Pass Switch node in material graph
UE - Graphics Features - Mar 11, 2025Plugging an Add node which adds a constant value into a Nanite Pass switch node results in derivative ops to be detected where there should be none (which show up as red in the No Derivative Ops deb ...
Duplicating SkeletalMesh in packaged game causes crash
UE - Graphics Features - Nanite - Mar 11, 2025This code worked until UE5.4. NaniteResource added in 5.5 causes this issue. ...
When painting on a landscape with edit layers, there are UV distortions happening across the boundaries of paint layers when material is using SetMaterialAttributes
UE - Graphics Tools - Terrain - Landscape - Mar 10, 2025Context Landscape Edit Layers enables users to paint landscapes using non-destructive layers, and can add multiple layers to the landscape that can be edited independently from each other. Problem ...