Any Alpha value set in a FLinearColor used to draw a line on a Canvas HUD is ignored when the line is drawn

UE - Graphics Features - Apr 21, 2015

If an Alpha value is set in a FLinearColor that is used to draw a line on a Canvas HUD, the Alpha value is ignored when the line is drawn. A comment in BatchedElements.cpp indicates that some legac ...

Raytraced reflection doesn't work with high roughness

UE - Graphics Features - Lumen - Oct 30, 2020

Even when the max roughness for raytraced reflections is set to 1, they seem to be blended away at far below that value. For projects (e.g. film,vfx) where quality trumps speed it would be valuable ...

'Directions are not Compatible' error on ForEachLoopWithBreak if split struct pin is disconnected from Enum type

UE - Gameplay - Blueprint - Mar 25, 2015

'Directions are not Compatible' error on ForEachLoopWithBreak if split struct pin is disconnected from Enum type. Note: If the pins are reconstructed and the resplit, the error is fixed. ...

ScrollBox: Add Inertial Scrolling (Touch)

UE - Editor - UI Systems - Oct 16, 2015

Verify that inertial scrolling works in the ScrollBox and the ListView on touch devices. We have reports that it isn't working in 4.9, it may have been fixed since then, or not be as smooth as it c ...

WmfMedia: Track switching does not work

Media Framework - Aug 31, 2016

Track switching is currently not supported, because media with multiple tracks of the same type fail to load. Once that is fixed, implement run-time track switching. ...

Some components duplicated by Sequence Recorder

UE - Anim - Sequencer - Feb 23, 2017

Some components duplicated by Sequence Recorder Regression: YES Worked: 3249277 (4.14.3) Broken: 3299760 (4.15.0) ...

When changing Select Node index pin from boolean to int/byte options do not update

UE - Gameplay - Blueprint Editor - May 4, 2017

When changing from boolean to Integer/Byte the select nodes options are not changed to Option 0/Option 1 and instead are left as False/True ...

BinnedMalloc and BinnedMalloc2 performance on Linux is not good

UE - Foundation - Core - Jun 8, 2017

This test took 13 seconds using Binned2 and 10 seconds using Binned1. It took 0.06 seconds using jemalloc ...

BeginPlay not called for Post-Process Anim Instance

OLD - Anim - Oct 29, 2019

Post-Process Anim Instances do not have BeginPlay called. The proposed fix is to addif (PostProcessAnimInstance) { PostProcessAnimInstance->NativeBeginPlay(); PostProcessAnimInstance->Blu ...

Typo in Tick Interval tooltip inside task blueprints

UE - AI - May 28, 2020

The BTTask_BlueprintBase class has a type in the tooltip for Tick Interval: " /** If any of the Tick functions is implemented, how ofter should they be ticked.Values < 0 mean 'every tick'. */" ...