Select node pins can silently change type on reload and break a previous connection.

UE - Gameplay - Blueprint - Apr 12, 2017

Same issue as in [Link Removed], only this is a different node implementation that attempts to replicate similar behavior. There are a couple differences in behavior here though; notably, that the c ...

[Review Tool] The editor crashes while attempting to load a modified Blueprint that uses Interface for review.

The crash is due to previous Rename operation, that reset a preallocated array which later FAsyncPackage2::ExecuteDeferredPostLoadLinkerLoadPackageExports tries to use.  Before loading change list ...

LIVE: BP: Memory leak when opening blueprints

UE - Gameplay - Blueprint - Apr 27, 2014

When opening blueprints, there is a potential memory leak occuring as the blueprint editor opens ...

EnhancedInput Chorded Actions do not work on higher priority mappings

UE - Gameplay - Input - Aug 21, 2023

Reported from Prismatic: It appears that the Add Mapping Context function currently prioritizes low numbers over high numbers, which seems inconsistent with the function description and some parts ...

Reflection Captures permanently unload with world streaming

UE - Graphics Features - Jul 19, 2024

When a reflection capture is unloaded due to streaming, it cannot be reloaded when the player returns to that area in the world because FReflectionCaptureData::OnDataUploadedToGPUFinal deletes the C ...

Creating TArray of components does not allow component elements to be edited in blueprints

UE - Gameplay - Blueprint - Mar 8, 2016

When an array is used to declare actor components, the component elements that make up the array cannot be edited inside blueprints. ...

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 ...