Moving a saved duplicate of an OpenWorld level crashes the Editor

UE - World Creation - Worldbuilding Tools - Mar 19, 2025

Moving 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 ...

FSkeletalMeshComponentInstanceData subclasses FSceneComponentInstanceData instead of FPrimitiveComponentInstanceData

UE - Anim - Rigging - Mar 19, 2025

FSkeletalMeshComponentInstanceData subclasses FSceneComponentInstanceData instead of FPrimitiveComponentInstanceData. When calling ApplyToComponent() the SceneComponentInstanceData version will be c ...

HDR (eye adaptation) visualization has incorrect output when Allow static lighting is disabled

UE - Graphics Features - Mar 19, 2025

Licensees have reported that this issue occurs in UE 5.5 and does not appear to occur in UE 5.4 or with Substrate enabled. ...

Discrepancy in FBX import on animations

UE - Editor - Content Pipeline - FBX - Mar 19, 2025

In the attached screenshots, the following Animation Sequence assets are wrong: * FX_WST050_pSphereB1_TS_AnimFX_WST050_pSphereC1_TRS_AnimFX_WST050_pSphereC1_TRS_AnimFX_WST050_pSphereD_TR_Anim If yo ...

[AI] The ZoneGraph show flag is in the ZoneGraphEditor module but used during runtime in ZoneGraph module

UE - AI - Navigation - Mar 18, 2025

The show flag for ZoneGraph lives in the ZoneGraphEditor module, but it is used for debugging at runtime by the main ZoneGraph module. There are protections around the type of build and some for EDI ...

Vehicle Template with Thruster Configuration will be affected by force relative to the distance from the origin

UE - Simulation - Physics - Mar 18, 2025

Vehicle Template vehicle with added Thruster Configuration to its VehicleMovementComponent will be affected by force relative to the distance from the origin. At around 200000 the force is enough to ...

Incorrect UVs on imported FBX when collapsed

TM - Interoperability - Mar 18, 2025

UVs appear to be broken when client file is imported using Collapse by Material or Collapse All.  ...

Large Memory Allocations When Adding a Landscape_WaterBrushManager

UE - Graphics Tools - Terrain - Mar 17, 2025

When a "Water Body River" is added to a Scene with a Landscape, eleven Render Targets are allocated for the water rendering. These Render Targets are sized according to the resolution of the Landsca ...

Legacy HLOD Nanite Meshes Always Rendering in 5.5

UE - World Creation - Worldbuilding Tools - HLOD - Mar 17, 2025

From 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 ...