Masked Materials have become more expensive to use

UE - Graphics Features - Aug 18, 2016

Masked Materials have become more expensive in 4.13 and internal builds than in 4.12. Images attached for demonstration along with test map using the bush prop from starter content. Tested with ...

UMG Viewmodel Plugin -- When setting up View Bindings, several arithmetic and comparison functions are missing from the "Conversion Functions" list

UE - Editor - UI Systems - UMG - Mar 20, 2026

When setting up View Bindings from the "UMG Viewmodel Plugin" on a Widget Blueprint, it is possible to select a compatible "Conversion Function" from the list of available bindings. By default, the ...

[CrashReport] UE4Editor-Core!static void PureCallHandler() [WindowsPlatformMisc.cpp:477]

UE - Foundation - Core - May 8, 2020

Generated from CrashReporter Error Message: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformMisc.cpp] [Line: 475] Pure virtual function bei ...

Engine crashes while attempting to resimulate procedural foliage volume with target layer set on landscape proxies

UE - World Creation - Worldbuilding Tools - Foliage - Apr 17, 2015

If a procedural foliage volume attempts to use the "target layer" feature and resimulate while encompassing a landscape proxy, the editor will crash. Frequency: 3/3 Crash Report: [Link Removed] ...

Destroy Component node does not work on decals

UE - Gameplay - Blueprint - Jun 1, 2015

Destroy Component node does not destroy decals when called. ...

The Top Down template TopDownController has Block Input enabled by default

Docs - Samples - May 19, 2015

The Top Down template TopDownController has Block Input enabled by default. This is potentially confusing for new users not aware of this difference. Note that due to [Link Removed], testing this r ...

User cannot undo the automatic changing of Mobility settings

Tools - Sep 12, 2016

When the users causes a component to automatically change its Mobility setting by changing that setting on a parent or child component, undoing that change only affects the manual change caused by t ...

Blender exported assets flip material elements on import in 4.14 P1

UE - Editor - Content Pipeline - Import and Export - Nov 7, 2016

In 4.14 Preview 1, assets imported from Blender 2.77a flip material elements, causing materials to appear incorrectly once placed in level. Regression (yes) issue (does not) occur in 4.13.2 ...

changing physics type to simulated causes bodies to simulate in phat

UE - Simulation - Physics - Jan 18, 2017

1. open qa game 2. open a physics asset with multiple bodies 3. select a body and set its physics type to Simulated. 4. Notice simulation starts immediately even though we are not simulating. ...