FCanvasTriangle Item not accepting information from material Vertex Color

UE - Gameplay - Jul 15, 2015

From a Draw Material Triangle you cannot use a Material calling vertex color and the provided Vertex Color Pins to yield color on the HUD drawn triangle. It will always appear White. [Image Remove ...

Networked Root Motion Sources can experience desynchronisation that is not present in animation root motion under forced adjustment

UE - Gameplay - Player Movement - Feb 13, 2024

In a networked environment with high packet loss (or high forced adjustment factor), motion applied using Root Motion Sources can desynchronise under conditions that animation root motion does not. ...

[CrashReport] UE4Editor_Landscape!FLandscapeComponentSceneProxy::DrawStaticElements() [landscaperender.cpp:1631]

UE - LD & Modeling - Terrain - Landscape - Nov 5, 2018

User comments in crash group:Enabled Flat Tesselation on a Terrain Material.I saved the material. 1628 if (HasTessellationEnabled) 1629 { 1630 ***** UMaterialInstance* NonTess ...

When IOStore is enabled, -createchunkinstall separates out chunk-non-0 pak files but not utoc/ucas files

UE - Foundation - Data Pipeline - Cooker - Dec 12, 2022

The -createchunkinstall option is used to separate out chunk>0 CDN/patch data from the main packaged app, but when using it with the IOStore enabled, only the pak files are separated out but not the ...

CSM shadow casters falsely culled due to incorrect primitive octree test

UE - Graphics Features - Shadows - Sep 13, 2024

While setting up whole scene shadows, CasterOuterFrustum is used to cull shadow casters from PrimitiveOctree. CasterOuterFrustum doesn't extend far back enough, which means that if an octree node fi ...

Code function with delay enters a loop when called from BPs

UE - Gameplay - Blueprint - Oct 19, 2015

If a code function is written with a delay that doesn't take any arguments, calling the function from blueprints causes the blueprint to get stuck in a loop and not continue to the next BP node. ...

C++ Third Person Template project crashes when opened

UE - Anim - Runtime - Mar 16, 2022

Third Person C++ project crashing on open on Android Devices 4/4 Repro rate ...

BP timelines: when converting internal curve to external, the external curve isn't used until BP is recompiled

UE - Gameplay - Blueprint Editor - Aug 28, 2023

Blueprint timelines: when converting an internal curve to an external curve asset, the curve asset's data isn't used until the blueprint is recompiled. This is confusing as there is no indication th ...

Movement corrections occurring while standing still on rotating platforms

UE - Gameplay - Player Movement - Oct 5, 2022

When the player is controlling a Character actor, using the CharacterMovementComponent (CMC), unexpected movement corrections will occur while standing still on a movement base that is rotating. ...

Double Properties break reset to default and inherited value propagation

UE - Gameplay - LWC - Apr 13, 2022

This is an issue with how FPropertyValueImpl::ResetToDefault works: it uses GetDefaultValueAsString to reset the default value. This is problematic because the LexToString function that is eventuall ...