Adding an Actor Component that is set to Replicate to an Actor that is also set to Replicate disconnects the Client from the Server

UE - Networking - Feb 25, 2016

Adding an Actor Component that is set to Replicate to an Actor that is also set to Replicate disconnects the Client from the Server. Note: this does not occur if the Actor Component is already added ...

Material Previews Reflection skybox are broken in 4.12

UE - Graphics Features - May 3, 2016

Materials are rendering now in the preview pane with artifacts caused by the change in the reflection skybox. This can clearly be seen in 4.12 and later by enabling the reflections view in the previ ...

Calling RequestStimuliListenerUpdate on actor with one element in AIPerception Sensing Config causes crash

UE - AI - Sep 18, 2015

If an AIPerception component is added to an actor and given one element set to either AI Hearing / AI Sight / AI Touch config then the game will crash once Request Stimuli Listener Update is called ...

Unable to Open Level in HTML5

UE - Platform - Mobile - Mar 16, 2016

Trying to use an Open Level function in HTML5 does not allow the level to actually load. Instead, the project flashes and refreshes back to its original position. Open Level function does work on W ...

ScreenAlignedUV doesn't work correctly on some mobile devices chipsets

UE - Platform - Mobile - Nov 21, 2016

Using ScreensAlignedUVs material node on some devices does not render correctly at farther distances. Devices tested with: Working: iOS 5s and Pro Working: S7 Edge - SM-g935P Working: LG G4S - ...

Crash while using the Delete Button in the HLOD Outliner while a Generated Proxy Mesh is opened in the Static Mesh Editor

UE - World Creation - Worldbuilding Tools - HLOD - Dec 28, 2016

When deleting a generated proxy mesh from the HLOD Outliner using the Delete Button while the generated proxy mesh is opened in the static mesh editor will cause the editor to crash. Workaround: U ...

UI_BUILD_SHIPPING_EDITOR not defined warning occurs when building for Android

UE - Platform - Mobile - Jan 18, 2017

The following warning occurs when building a project for Android in the Test configuration. LogPlayLevel: UnrealBuildTool: [119/283] clang++ Module.Core.4_of_8.cpp [armv7-es2] LogPlayLevel: Unreal ...

Landscape Grass Foliage Instances Culling Incorrectly

UE - World Creation - Worldbuilding Tools - Foliage - Feb 20, 2017

Foliage instances are culling incorrectly and seem to cull based off of the landscape components and/or entire foliage clusters. Regression? Yes, this issue does not occur in the 4.14.3 binary rele ...

Daydream enabled projects limits supported devices in Google Play

UE - Platform - Mobile - Mar 24, 2017

When enabling Daydream on Android devices and uploading it to Google PlayStore, the devices are lowered to 7. ...

FixDeps step will relink Engine modules even if only project code was changed

Tools - Oct 12, 2016

This is Linux and possibly Mac specific. FixDeps step does not have the proper dependencies and instead depends on every library, even one it is not relinking. Reported on UDN (see additional URL f ...