Physical materials cannot be queried

UE - Rendering Architecture - Materials - Feb 12, 2015

Physical materials placed on starter content shapes always return as invalid for any trace or collision query. ...

Landscape Layer Blend Nodes Improperly Update when Input Pins are Changed from Weight/Alpha to Height Blends

UE - LD & Modeling - Terrain - Landscape - Jun 3, 2015

Landscape layer blend nodes do not properly update input pins when layer pins are changed from alpha/weight blends to a height blend if the pins are populated during the change. ...

Preserve Non-Uniform Scale doesn't work for child actors

UE - Gameplay - Components - Feb 16, 2017

Preserve Non-Uniform Scale doesn't work for child actors when they are scaled smaller than the parent. Licensee Description: I just noticed that the option does not seem to work if the object is p ...

Diffing blueprints in Perforce changelist reviewer incorrectly displays blueprints that reference assets not in local filesystem

UE - Framework - Blueprint - Nov 22, 2024

When diffing a blueprint in the Perforce changelist reviewer in-editor (Review Changelists), if the blueprint references an asset that does not exist locally but rather exists as a newly added asset ...

Planar Reflections on Mobile short view distance for non single plane faces

UE - Platform - Mobile - Jul 7, 2016

Planar Reflections on mobile work well with single plane assets but not with anything with multiple sides, like a box. Tested in: 4.12.4 CL-3028348 4.13 Dev-Editor CL-3038075 ...

Compilation manager inhibit construction script to get other actor reference on the level when running construction script right after actor compile.

UE - Gameplay - Blueprint - Aug 9, 2017

Construction script execution following blueprint compile gets invalid actor reference if Blueprint compilation manager is enabled. For example, in the attached project, Right after blueprint compi ...

OnHit not firing when capsule collider passes onto very close and same height mesh

UE - Simulation - Physics - Sep 10, 2019

When a capsule collider passes from the top of one piece of geometry to another that is very close the OnHit event doesn't fire. I have attached a project that demonstrates the issue in 4.23. A vid ...

FVoiceSerializeHelper doesn't add references to AudioComponent instances

UE - Networking - Apr 28, 2015

"FVoiceSerializeHelper doesn't add references to AudioComponent instances" ShooterGame crashes when following the repro steps provided by the licensee, listed below and on the UDN post. Crash image ...

Can't set "r.Shaders.Optimize" to false in UE5.4

UE - Rendering Architecture - Shaders - Jun 7, 2024

The CVar "r.Shaders.Optimize" cannot be set to false from DefaultEngine.ini in the section "[ShaderCompiler]" as its help text describes. Also tested on UE5-Main, CL: 34200103 ...

The collision of objects moving at high speeds seems to move in front of the object

UE - Simulation - Physics - Mar 9, 2015

The collision of objects moving at high speeds seems to move in front of the object. The faster the object is moving, the further the collision will be from the mesh. AnswerHub report: https://an ...