Packaging fails with Event Driven loader enabled and two function libraries reference each other

UE - Foundation - Core - Mar 29, 2017

Packaging fails with Event Driven loader enabled and two function libraries reference each other even though the functions referenced in each library to NOT call each other in such a way as to creat ...

Typing Lerp into context menu of material editor does not bring up Linear Interpolate node

UE - Rendering Architecture - Materials - Jul 31, 2015

If "lerp" is typed into the context menuof the material editor, "linear interpolate" will not appear as one of the options within the menu. Typing "Linear Interpolate" or pressing L+LMB works as exp ...

TBigInt allocates twice as much memory as necessary for FString input

UE - Foundation - Core - Jul 9, 2015

TBigInt appears to allocate twice as much memory as necessary for the input. This produces an unexpected output of the input value. ...

r.ScreenPercentage.Editor does not function

UE - Graphics Features - Jun 2, 2016

Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...

Pressing "+" element in landscape grass type asset crashes editor

UE - LD & Modeling - Terrain - Landscape - Jul 31, 2015

Creating a landscape grass type and then pressing the + to add an element crashes the editor. Frequency: 2/2 Crashreporter: not currently available ...

KismetFunctionLibrary: Equals and NotEquals (SoftObjectReference) not accessible in BP Editor

UE - Gameplay - Blueprint Editor - Sep 2, 2022

In blueprint graphs, the action list for soft object references of a Object subclass is incorrect. "Equal" spawns an incompatible node, while the expected "Equal (SoftObjectReference)" is missing. " ...

Swarm Coordinator is not distributing Lighting Builds

UE - Foundation - Core - Jul 20, 2015

Swarm Coordinator in 4.8.1/2 is not distributing light builds across accessible agents. If you have and open a Coordinator included in the 4.7.6 build of the Engine, Coordinator is distributing cor ...

Level sequence updates more than once per frame when content editors are open

UE - Anim - Sequencer - May 27, 2016

When content editors are open, they cause sequencer to be updated more than once per frame. This causes animations running in PIE to play faster than expected. Licensee provides code for a potential ...

Ribbon Trails are inconsistent in Content Examples

Docs - Samples - Nov 1, 2016

In the Effects level of Content Examples, the Ribbon trails appears to snap back to the origin of the particle effect after the life of the particle. This is an issue in 4.13.1 as well. This is a ...

UnrealBuildTool fails to build generate project files or build if the project is stored on a non-HFS partition

UE - Foundation - Cpp Tools - UnrealBuildTool - Mar 29, 2016

When a user attempts to compile a project that is stored on a non-HFS partition on OSX, UBT fails to build due to files that are being generated that start with ".". The user's proposed fix is to ha ...