Animtation Starter Pack: Character does not animate correctly moving Forward/Left or Backward/Right

Docs - Samples - Jul 30, 2015

In the Animation Starter Pack, if you hold down W+A simultaneosly to move Forward/Left OR S+D to move Backward/Right, the character does not face the proper direction and will appear to "slide" acro ...

Video Texture thumbnail does not update after you change its output track

Media Framework - Mar 2, 2017

When updating a video texture's output track, the player preview and world will update immediately, however the texture's thumbnail will revert to default color: Black. When moused over, the thumbn ...

Drop down menus clip on 27" Screen iMacs

UE - Platform - Apple - Mar 17, 2017

Drop down menus clip on 27" Screen iMacs (See attached images.) Reported from a 27" iMac and tested on a 27" iMac here. Other models may be affected. *Image with Blue circled areas are from the use ...

uncaught exception: out of memory after launching project onto HTML5 (32-bit browsers)

UE - Platform - Mobile - Mar 20, 2017

First person template project is struggling to run on Firefox 32-bit Version 52.0.1 and eventually throws an "uncaught exception: out of memory" error. Occurs in both BP and C++ projects. May be a ...

Draw as Border is not limited to sprite area in UMG

UE - Editor - UI Systems - Apr 14, 2017

UMG supports sprite as an image, but using this as source do not correctly cut sprite's region which limits border textures to be separated textures. If the Image has a material, size do not match ...

Switch on Gameplay Tag Container node does not compile

UE - Gameplay - Blueprint - Jun 9, 2017

It looks like the Switch On Gameplay Tag Container node stopped working in 4.15. The Switch On Gameplay Tag works fine. ...

MaterialInstance ScalarParameter's desc can not upadate.

UE - Rendering Architecture - Materials - Jul 19, 2017

When this problem occurs, "MaterialExpression" is null in FMaterialInstanceParameterDetails::GetParameterExpressionDescription. ...

[CrashReport] Mac crash - FMetalRenderPipelineDesc::CreatePipelineStateForBoundShaderState

UE - Rendering Architecture - RHI - Aug 25, 2017

This is an infrequent Mac crash that has been affecting users since at least 4.15. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to the ...

When Packaging a Blueprint Nativized Game, Child Actor BeginPlay is ignored and Parent BeginPlay is triggered instead

UE - Gameplay - Jul 5, 2018

In a Blueprint Nativized Packaged Game a child Blueprint will trigger its parent logic instead of its own when it is called. This was reported in 4.20 Preview 5 (CL-4173640). This issue has been r ...

Alembic file doesn't play animations when imported as Skeletal Mesh

OLD - Anim - Aug 21, 2018

When importing an Alembic file as a Skeletal, the animation and morph targets keys are there but when played in the Viewport or Sequencer there is no animation. This was reported and tested in 4.2 ...