Calling DiscardPlayerInput() does not appear to actually discard the player's input

Gameplay - Jun 19, 2018

Calling DiscardPlayerInput() does not appear to actually discard the player input. The comment for the function indicates that input will be consumed and discarded without doing anything with it. Ho ...

Landscape only returns DefaultPhysicalMaterial when run in editor world

Tools - Landscape - Jun 19, 2018

Landscape will only return "DefaultPhysicalMaterial" when run in editor world. In game time it will return the proper physical material. Found in 4.19 CL# 4033788, 4.20 Preview 3 CL# 4135216 , 4.21 ...

Preformance drop when calling draw to render target

Rendering - Jun 19, 2018

There is a major performance drop after 4.18 when calling draw material to render target. This is an issue reported by many community members, and there seem to be additional reports with different ...

Make Timespan Node: Milliseconds to Seconds Conversion

Gameplay - Blueprint - Jun 19, 2018

Make Timespan node returns unexpected conversion from milliseconds. With all other values 0 - values in the Milliseconds field over 2147 flip to negative and begin to decrement ...

Parser drops Braces unexpectedly when copy pasting Nodes

Core - Jun 19, 2018

InString with Curly brackets are copied to clipboard as DefaultValue="\"{Hello}\"", and the pasted result does not include the Curly brackets. "Brace drop itself is happening in FParse::Li ...

Project deadlocks when using FClassFinder to find an AnimInstance UObject

Core - Jun 19, 2018

The project hangs on load when using ConstructorHelpers::FClassFinder to find an AnimInstance UObject. ...

Crash upon opening Windows 64 bit development build with only DX10 RHI enabled

Platform - Desktop - Jun 18, 2018

When packaging with only support for DirectX10 RHI, the editor will crash after hitting "OK" on the window that mentions that the Global Shader Cache file is missing. This was encountered while run ...

ActorComponent and 'SubComponent' Blueprint Default values are being overridden by Class Default values

Gameplay - Jun 18, 2018

Blueprint Actor values inherit the Class Default Object values instead of its Blueprint Default Object values. ...

Importing Alembic/ABC File with Large Number of Morph Targets Breaks Morph Targets

Anim - Jun 18, 2018

When importing abc files with several morph targets (as a skeletal mesh), some morphs do not import and the ones that do are distorted(see screenshots and attached project) -Number of morphs is no ...

Tracks referencing the same sequencer don't work properly in package build

Sequencer - Jun 18, 2018

This issue is regression. It don't occur with 4.18.3. Sequencer behavior differs between PIE and package build. As shown by the attached .png, in PIE one character moves, but in package build it ap ...