Level Actors that are converted to a Blueprint using "Convert Selection to Blueprint Class" and using "Harvest Components" as the CreatingMethod, does not sanitize dots (.) character and make them invalid for operations like StaticFindObject.

UE - Framework - Blueprint Editor - Feb 20, 2025

When Level Actors are converted into a Blueprint using the "Convert Selection to Blueprint Class" option with "Harvest Components" as the creation method, the conversion process does not sanitize do ...

Message to rebuild lights does not display after static mesh position has changed

UE - Graphics Features - Aug 28, 2024

In a static lighting environment, moving static objects no longer marks the built lighting as invalid. This prevents the on-screen warning from appearing. Regression introduced in CL: 25964466 on / ...

NPC - When an NiagaraParameterCollection asset is duplicated or when its namespace is changed, any existing parameters get incorrectly duplicated/renamed with the addition of the namespace prefix

UE - Niagara - Sep 30, 2024

When an NPC asset is duplicated, the ne wasset gets incorrectly duplicated parameters: one set with the correct names, and one set with the original namespace prefix embedded into the names. These i ...

Collision lost from body when using world composition and streaming

UE - Simulation - Physics - Mar 1, 2021

Physics object from a streamed level does not interact with other physics objects in persistent level. ...

UObject set to DefaultToInstanced will show all properties declared at the blueprint level, even in they're private and not instance editable

UE - Editor - Workflow Systems - Apr 19, 2024

Licensee found that when creating a UObject class with DefaultToInstanced and EditInLineNew specified, and then a derived BP was created using the UObject class and used as a variable type in an act ...

Crash at startup when vcomp140.dll prerequisite is missing.

TM - Interoperability - May 3, 2024

Some users are experiencing a Crash at startup because of missing vcomp140.dll prerequisite. ...

When changing the Material of a CompleCollision during PIE, the change is not applied to the PhysicsMaterial.

UE - Simulation - Physics - Nov 24, 2022

If changing the material during PIE, the content of the material will be reflected immediately, but the physics material will not. Once the Mesh (Complex Collision Mesh) is cleared and reset, it wil ...

[MetaSounds][Builder API] - Editor crashes when setting node position to a large value

UE - Audio - MetaSounds - Aug 9, 2023

Setting the location of a node a the MetaSound Editor Subsystem to a very large value crashes the editor.Unhandled Exception: EXCEPTION_STACK_OVERFLOW Crash reporter link: [Link Removed] ...

Subsurface Scattering Checkerboard with SceneColourFormat 3 (High Scalability) leads to a visual artefact when temporal upscaling is in use

UE - Graphics Features - Sep 30, 2024

Primarily visible at very low internal resolutions (25-33%), the SSS checkerboard with an RGB scene colour format (r.SceneColorFormat 3) causes a double-image artefact both internally and on the sil ...