Character actor with simulated physics using an Anim Instance blueprint does not preview when scrubbing through sequencer timeline

Tools - Sequencer - Jul 17, 2018

A character actor using an AnimInstance blueprint will not update in editor when scrubbing ...

Landscape Spline meshes lose vertex color paint after moving to another level

Tools - Landscape - May 11, 2018

UDN: https://udn.unrealengine.com/questions/432735/%E5%9C%A8%E6%B5%81%E5%85%B3%E5%8D%A1%E4%B8%AD%E6%8F%8F%E7%94%BB%E6%A0%B7%E6%9D%A1%E6%9B%B2%E7%BA%BF%E4%B9%8B%E5%90%8E%E5%A6%82%E6%9E%9C%E6%8A%8A%E ...

If Creating New Project Using AR Template, It Needs a Remote Build Like C++ Project

XR - May 9, 2018

When creating new BP project using ARTemplate, it needs a remote build like C++ project. As a result, Remote Build is required, user can't create a package using ARTemplate only on Windows. ...

Landscape on Mobile is broken

Tools - Landscape - May 8, 2018

UDN: https://udn.unrealengine.com/questions/431532/landscape%E5%9C%A8%E6%89%8B%E6%9C%BA%E5%B9%B3%E5%8F%B0%E6%98%BE%E7%A4%BA%E9%94%99%E8%AF%AF.html ...

Cannot add a non-static custom thunk to a code class

Core - UnrealHeaderTool - May 7, 2018

In 4.19, it is no longer possible to create a non-static custom thunk in a class. This was possible in 4.18.3. REGRESSION: Yes. ...

Function about Comparing Manifest Version in HttpChunkInstaller does not Consider Manifest File Update

Portal - May 7, 2018

Current HttpChunkInstaller consider version data of manifest.But it does not consider the manifest file update. So, if user update the manifest file, HttpChunkInstaller ignores it. If changing the V ...

Editor crashes when duplicating a Blueprint instance whose parent class overrides PreEditChange() without including a call to Super

Gameplay - Blueprint - May 4, 2018

Attempting to duplicate an instance of a Blueprint in a level where the parent code class has overridden PreEditChange() without including a call to Super results in the Editor crashing. ...

Material Set to Additive Blend Mode Does Not Render Correctly in Planar Reflections

Rendering - May 2, 2018

This behavior has been observed in 4.17, 4.18, and 4.19 release versions. Per Licensee: In our game they player's hands are represented by glowing blue orbs and in planar reflection surfaces they ...

iPhonePackager.exe is not included when a local binary build of the Engine is created on a Mac

DevTools - Rocket - May 1, 2018

When a local binary build of the Engine is created on a Mac, the iPhonePackager is not copied over into the new local binary build. This prevents iOS certs and provisions from being imported into pr ...

Crash when calling an event with an enum reference parameter with literal

Platform - Linux - May 1, 2018

The issue appears to be the type of the input pin on the custom event(or function - both behave the same), under normal circumstances it should allow you to pick the enum from a list on the calling ...