The target for the "Should be Loaded" variable appears to have change to "Level Streaming Kismet"

UE - Gameplay - Blueprint - Jun 21, 2018

The target for the "Should be Loaded" variable appears to have change to "Level Streaming Kismet". This means that it no longer works with the "Get streaming level" node and can cause errors when us ...

Nav Area class is reset after updating from 4.19.2 to 4.20 Preview 3

UE - AI - Jun 21, 2018

When upgrading a 4.19.2 project to 4.20 Preview 3 the Nav Area Class is changed to None instead of the value it was before the upgrade. Upgrading from 4.18.3 to 4.19.2 works as expected. This was t ...

Invalidation box appears inconsistent when using child widgets

UE - Editor - UI Systems - Jun 21, 2018

Invalidation box appears to be inconstant when using a child widget that has been added via the user created section. A child widget that modifies itself will not update when placed inside of an inv ...

Incorrect WorldType causes crash in ULandscapeSplinesComponent::CheckForErrors

UE - LD & Modeling - Terrain - Landscape - Jun 21, 2018

When adding a sub-level that contains a Landscape and Landscape Splines to an existing Level, it will cause a crash when building the lighting.  This issue was reported in 4.18.3 (CL 3832480) and t ...

[Landscape] only returns DefaultPhysicalMaterial when run in editor world

UE - LD & Modeling - Terrain - 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 ...

Morph Target Previewer does not refresh during Reimport

Tools - Jun 19, 2018

Reimporting an asset with Morph Targets does not refresh the Morph Target Previewer. Any newly-imported Morph Targets appear to not have been imported. Closing and reopening the Skeletal Mesh Editor ...

Preformance drop when calling draw to render target

UE - Graphics Features - 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

UE - Foundation - Core - 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

UE - Foundation - 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 ...

[CrashReport] UE4Editor_Renderer!FMaterialShader::SetParametersInner<FRHIVertexShader * __ptr64>() [shaderbaseclasses.cpp:181]

UE - Graphics Features - Jun 19, 2018

No user comments in crash group 172 const bool bOverrideSelection = 173 GIsEditor && 174 !View.Family->EngineShowFlags.Selection && 175 (MaterialRenderProxy- ...