Material overrides not respected when generating HLODs.

UE - World Creation - Worldbuilding Tools - HLOD - Oct 1, 2024

When generating HLODs, it is possible for the generator to ignore material override settings. The generator will not respect the constants, and does not change them in the Material with a default se ...

First Person Primitive

UE - Graphics Features - Feb 20, 2025

First Person Scale and First Person Field of View on camera components do not apply to the depth prepass when rendering First Person View meshes, leading to a mismatch between the depth pre-pass and ...

Soft Raytracing Shadows are flickering

UE - Graphics Features - Ray Tracing - Feb 18, 2025

[Image Removed][Link Removed] ...

Nanite TwoSidedSign is backwards

UE - Graphics Features - Nanite - Apr 10, 2025

The value of MaterialExpressionTwoSidedSign is flipped when calculating the Opacity Mask for Nanite meshes. This seems to be a regression in 5.5. ...

Texture reprojection from one plane to another produces displacement map with a pattern

RC - Texturing - Mar 4, 2025

Found in 1.5.1.118081 Project: [Link Removed] Message from customer: "The problem occurs when using the texture reprojection tool on a surface scan to bake model details onto a simple bake plane ...

Replication default setting of child blueprint resets if parent is compiled

UE - Gameplay - Blueprint - Jul 20, 2015

The setting for Replication on a Blueprint variable resets to None of the Blueprint's parent BP is compiled. ...

Changing UPROPERTY() settings causes detail components to vanish in editor

Tools - Mar 11, 2015

When a UPROPERTY() macro is changed and the recompiled, the hot reload in the editor will cause any BP based on the class to lose certain aspects of the Detail panel such as the actor's transform. ...

Static mesh loses static mesh reference when Alt-dragged in viewport if filepath contains []

Tools - Sep 3, 2015

Static meshes lose their static mesh reference when alt-dragged in viewport. This only occurs if the mesh is located in a filepath containing square brackets ( [] ) within the filepath name. Additio ...

Interface cannot be re-implemented after removal from blueprint

UE - Gameplay - Blueprint - Sep 1, 2015

If an interface is removed from a blueprint and an interface function is transferred to a local function, the interface cannot be re-implemented in the blueprint. ...