Incorrect volume bounds check in FTranslucentLightInjectionCollector::AddLightForInjection

UE - Graphics Features - Apr 8, 2025

The 'VolumeBounds' array in FTranslucentLightInjectionCollector::AddLightForInjection is accessed as a pointer instead of with 'VolumeCascadeIndex' and thus fails bounds checks for the outer volume. ...

Memory Leak When Raytracing Enabled with Specific Rendering Settings

UE - Graphics Features - Ray Tracing - Apr 8, 2025

When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...

Crash in GPUMessage.cpp when resetting FSocket when RHI is NullRHI.

UE - Rendering Architecture - RHI - Apr 5, 2025

When tearing down a nanite project with the nullrhi active, there is a crash in the FeedbackManager destructor that causes any exit to be unclean. The teardown process causes a crash as the destruc ...

Network Prediction crash when smoothing service instance data is reallocated out from under FNetworkPredictionStateView

UE - Gameplay - Network Prediction - Apr 4, 2025

Received a report from a licensee using Network Prediction Plugin and Mover.  There is a strong likelihood of a crash occurring when using NPP's smoothing option and spawning new NPP-simulating ins ...

Lack of multi-bounce when using software traced lumen radiosity

UE - Graphics Features - Lumen - Apr 4, 2025

Certain Lumen Hardware Ray Tracing CVars, when disabled in isolation, will not fall back to tracing the Global Distance Field, because the Global Distance Field is still disabled. The function "Lum ...

Object Tracks in SubSequencer Lose References When Blending is Enabled

UE - Anim - Sequencer - Apr 4, 2025

We're encountering an issue when using object tracks in subsequencer. When enabling blending on a subsequencer section, the object reference resets throughout the entire duration of the track. Inte ...

Sequencer Conditions crash - GarbageCollectionVerification

UE - Anim - Sequencer - Apr 3, 2025

Encountered a crash during the garbage collection phase when using sequencer conditions with subsequence tracks. Specifically, objects appear to break the "Disregard for GC" assumptions. ...

Blueprint asset tabs move around weirdly when you navigate between them with too many open

UE - Editor - Workflow Systems - Apr 3, 2025

The "parent class type" text changing size causes the tabs to shift around a lot when you have a lot of them. We need to figure out a better place for this text to avoid the issue ...

Datasmith .WIRE Import - Shader name inserted into Material Element Slot

UE - Editor - Content Pipeline - CAD - Apr 2, 2025

Can we please implement a feature whereby the shader name applied to surfaces / objects is used for the Material Element Slot? When using Dataprep and replacing the materials using a table, it give ...

MaterialX texture imports won't import files with the same name

UE - Editor - Content Pipeline - Import and Export - Apr 2, 2025

Hello! When importing .mtlx files that contain textures with the same name (but different filepaths), only the first texture is imported. This seems to be due to the function CreateTextureNode() i ...