Can not save if overwriting when creating DataAsset with Blueprint's AssetTools

Tools - Nov 13, 2018

I found out that when creating a DataAsset from AssetTools, The load flag (bHasBeenFullyLoaded) of the created Asset is not set, It seems to be in a state where overwriting saving has not been compl ...

Crash when copy and paste a Child Actor Component in blueprint.

UE - Gameplay - Blueprint - Nov 14, 2018

A crash occurs when copy and paste the ChildActorComponent, only if the template actor has a DefaultSubObject. There is no crash in the case of using Actor (eg. AActor) without a DefaultSubObject as ...

IsEditorOnly Components hidden from Component Tree when duplicating

UE - Gameplay - Blueprint Editor - Nov 14, 2018

IsEditorOnly Component is hidden when it is duplicated. This can be redisplayed by blueprint compile, but it is preferable that it is the same as when IsEditorOnly is disabled. Gif1 is the case of ...

IOS 11 Freezes When Generating Particles Using SphereMask

UE - Platform - Mobile - Nov 16, 2018

When playing a particle using SphereMask, iOS 11 device terminal freezes.This issue is not a crash, it's screen freeze. Reproduced deviceiphoneX :iOS 11.4.1iphone7 :iOS 11.4.1 Not reproduced devic ...

Filling Vertex Colors does not propogate down to other LODs

Tools - Nov 19, 2018

The original reported behavior called out that filling individual channels did not apply to LODs when LOD Model Painting = False. With changes implemented in 4627582, the initial fill will reach LOD ...

Editor running with "DebugGame Editor" configuration fails to launch (This happens only on 4.21 via Launcher)

UE - Foundation - Cpp Tools - Nov 20, 2018

This happens only on 4.21 via Launcher. UE4 editor running with "DebugGame Editor" configuration fails to launch The error log is below. ERROR: System.IO.DirectoryNotFoundException: Could not fin ...

URLs aren't parsed correctly when running multiple listen servers on one machine

UE - Networking - Nov 19, 2018

According to the UDN thread, a second listen server started on a machine will not process the travel URL correctly and fail to actually load a map in listen mode. ...

Setting Lightmap Coordinate Index Past 3 Causes Mesh to Get No Lightmap Information

UE - Graphics Features - Nov 20, 2018

Meshes with their Lightmap Coordinate Index set to anything over 4 will not be lit by static or stationary lighting.  Found in CL# 4.19 4033788, 4.20 CL# 4369336, 4.21 CL# 4541578, 4.22 CL# 4573698 ...

Simple HMD VR preview left eye color issue

UE - Platform - XR - Nov 21, 2018

The left view in simple hmd (when no HMD is in use) will appear different from the right. All assets in the left view will appear one color (example image attached). ...

Crash after renaming Blueprintable DataAsset

UE - Gameplay - Blueprint Editor - Nov 21, 2018

Renaming a blueprint instance of a DataAsset which has been used as the parent class of a DataAsset will cause a crash. ...