Crash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true

UE - Graphics Features - Path Tracer - May 16, 2025

Cash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true The licensee has reported: This crash happens because the DeferredShadingRenderer tries to extract the normal GBu ...

Changes to Instanced Properties default value on BP not propagated to placed actors in the opened level

UE - Core - Systems - May 15, 2025

In UE versions 5.4 and onwards (as of CL 42589677 in Main), when an Instanced UObject property is defined in an Actor Blueprint, modifying the default value in the Blueprint does not propagate the c ...

InstancedStruct Local Variables do not work

UE - Core - Systems - May 7, 2025

The licensee has noticed that local variables of type InstancedStruct return nullptr. The setup is a verification of the behavior. Class variables work normally. I've tested this behavior on every v ...

Memory leak in global distance field when bDisableWorldRendering=true

UE - Rendering - Graphics Features - Jan 7, 2025

A memory leak occurs in global distance fields when bDisableWorldRendering=true As a workaround until this is fixed, you can disable the logic that checks bUpdatedThisFrame *in *GlobalDistanceField ...

AssetLocalization does not work and the asset does not switch to localization asset even if culture is specified

UE - Editor - UI Systems - Localization - Dec 20, 2024

Asset localization does not work. When playing in standalone, it shows "jp" texture instead of "en" texture even if "-culture=en" is set. This appears to be a regression issue, as the localization w ...

[CrashReport][GPU Crash] NodeAndClusterCull

UE - Rendering - Graphics Features - Nanite - Nov 19, 2024

Users affected: 51 Total occurrences: 90 Last occurrence: November 19th 2024, 3:25:41 am First occurrence: August 7th 2024, 8:10:10 pm Latest version: ++UE5+Release-5.5-CL-37670630 Platform: Win64 [ ...

Crash after 'Reparent Blueprint' when renaming component on-top of orphaned inherited component

UE - Framework - Blueprint Editor - May 7, 2024

After reparenting a blueprint and inherited components from the previous parent are removed, trying to give a new component the same name as a previous component causes a crash inside UObject::Renam ...

Crash when spawning actor with no viewport initialized

UE - Editor - Nov 22, 2023

If an attempt to spawn an actor is made before the Level Editor Viewport is fully initialized (i.e. before it has had a chance to get rendered at least once), and that actor has no specific Factory ...

Inversing the scale of a skeletal mesh when it's simulating physics results in the mesh and collision being flipped

UE - Runtime - Simulation - Mar 18, 2021

The attached project has 3 skeletal meshes. One with its original transform and then 2 copies with an inversed scale in the X axis for one and the Y axis for the other. When pressing play, the meshe ...