Template function TSparseArray::PointerToIndex does not compile

UE - Foundation - Core - May 26, 2020

Error:  C:\Program Files\Epic Games\UE_4.25\Engine\Source\Runtime\Core\Public\Containers/SparseArray.h(778): error C2440: '-': cannot convert from 'const TSparseArrayElementOrFreeListLink<TAlignedBy ...

Crash when AnimBlueprint and Bleuprint Interface has Same Name Function

OLD - Anim - Nov 12, 2019

When AnimBP and Blueprint Interface was added to the AnimBP has same name function, compiling AnimBP occur crash. ...

Remove the option to convert material functions to a parameter

UE - Rendering Architecture - Materials - Mar 5, 2020

Material functions have the option to be converted to a parameter but do not convert to a parameter. For example, create a MakeFloat3 or MakeFloat2 node > convert to parameter.  ...

HISM(Hierarchical instance static mesh) has lightmap problem after building lighting

UE - Graphics Features - Aug 5, 2018

HISM has lightmap issues after build lighting ...

Calling a function that returns TWeakObjectPtr in blueprints causes crash

UE - Gameplay - Blueprint - Mar 20, 2015

Calling a code defined function in blueprints that returns a TWeakObjectPtr causes a crash. ...

Anisotropic metallic material and area lights don't work

UE - Graphics Features - Substrate - Jun 28, 2023

Oculus CheckIfPointWithinPlayArea function returns incorrect results

UE - Platform - XR - Jan 10, 2018

Oculus CheckIfPointWithinPlayArea function returns incorrect results, always reporting true whether or not the hand is inside the play area or not.  The distance and closest point also seem incorrec ...

Material Function CylindricalUVs is missing the Object Position

Docs - Samples - Sep 29, 2014

The Material Fucntion CylindricalUVs is missing the Object Position node ADDITIONAL NOTES: You can see the UVs wrapping around 0,0,0 without the position node attached, instead of the mesh's pos ...

Engine Crash when Running a Screenshot Functional Test

UE - Automation Test - Apr 12, 2023

Running a Screenshot Functional test, is causing an engine crash. By attaching a debugger to it, AScreenshotFunctionalTestBase::PrepareForScreenshot() is reached and GEngine->GameViewport is null, ...

Ensure exiting PIE after stepping into Blueprint Function Library

UE - Gameplay - Blueprint - Nov 20, 2017

Ensure occurs when the user exits PIE after debugging a blueprint and stepping into a blueprint function library. ...