AnimNotifyState with the same class, but different content at the same time will only one be triggred

UE - Anim - Runtime - Oct 26, 2022

UDN Case : https://udn.unrealengine.com/s/question/0D54z00008G3EmwCAF/two-c-based-animnotifystate-with-the-same-class-but-different-content-at-the-same-time-will-only-one-be-triggred?fromCase=1 ...

Animation Layer Interface content filter overrides other content filters

UE - Editor - Workflow Systems - Jan 30, 2023

Animation Layer Interfaces are overriding the filter making it so only that asset type is visible even when paired with other filters.  There is an exception to this with the blueprint interfaces fi ...

Actor Soft Reference in LevelInstance does not have a Referenced Object during PIE

UE - World Creation - Worldbuilding Tools - Level Instances - May 30, 2023

When setting an actor on a level to the SoftObjectRefence(Type:Actor) variable and outputting the object name as a PrintString, the object name cannot be correctly obtained if the set actor is place ...

Memory stomp in UTexture2DArray::SetPlatformData

UE - Texture - May 30, 2024

A crash from bad memory access can happen when clearing the textures in a Texture2DArray asset. This appears to be because the order of operations when deleting the platform data is: ``` if (Privat ...

Building Geometry Stops UTickableWorldSubsystem Ticking

UE - Gameplay - Jan 13, 2025

Can be mitigated by reopening the Level. There is a repro project provided by the licensee on the case ticket. ...

Building Geometry Stops UTickableWorldSubsystem Ticking

UE - Gameplay - Jan 31, 2025

Can be mitigated by reopening the Level. There is a repro project provided by the licensee on the case ticket. ...

[CrashReport][GPU Crash] NodeAndClusterCull

UE - 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 [ ...

Mesh from attached USD fails to import

UE - Editor - Content Pipeline - USD - Mar 31, 2025

UDN customer reported this issue: Using legacy USDImporter, the attached USD throws these ensures ensure(Primvar.Get(&UVs, Options.TimeCode)); ensure(Primvar.GetIndices(&Indices, Options.TimeCode) ...

Hovering items at bottom right of Content Browser does not display tooltip and causes cursor flicker

UE - Editor - Applied Usability - Sep 17, 2025

When hovering over items located at the bottom right corner of the Content Browser while the Editor is maximized, the tooltip is not displayed. It seems that the tooltip would extend beyond the edge ...

Pathtracer - Odd results from any material adjusting normals to complement world position changes

UE - Graphics Features - Path Tracer - Sep 30, 2025

Someone on the forums is reporting a possible bug with Pathtracer and any material that adjusts normals to complement world position changes. See pic attached. Reporting forum thread:https://foru ...