x86 and x64 architectures fail to compile on Android with NDK14b+

UE - Platform - Mobile - Oct 3, 2018

x86 tries to compile as 64-BIT (get an error that sizeof(void *) != 4, and x86_64 fails to find wchar.h. ...

Foliage Lightmaps Are Incorrect When Using a Precomputed Lighting Scenario

UE - Graphics Features - Oct 2, 2018

Foliage lightmaps will not match properly to the lighting when using a lighting scenario. They will look normal if you select the Foliage tool but in PIE they will still be incorrect. Working as ex ...

Blueprints with accent characters fail to open when converted from 4.19 to 4.20

Tools - Oct 2, 2018

Any Blueprint with accents in the name, coming from 4.19 won't open in 4.20. Double clicking the asset, trying to right click asset, results in no actions. When loading the project this message app ...

Can change type of event dispatcher in Blueprint

UE - Gameplay - Blueprint Editor - Oct 2, 2018

It seems that with 4.20 users are able to change a dispatcher's type from Multicast Delegate to something else (float, int, etc.) Doing so will cause any node that references the dispatcher via call ...

"Found plugin in two locations" error when calling BuildPlugin on .uplugin named the same as one in \Engine\Plugins\...

UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 2, 2018

In 4.20, calling BuildPlugin on a plugin outside the \\Engine\Plugins\... folder whose .uplugin has the same filename as a plugin inside \\Engine\Plugins\... generates the following error: ERROR: F ...

Add ENGINE_API to FPhysScene's AddPendingSleepingEvent and AddPendingOnConstraintBreak

UE - Simulation - Physics - Oct 2, 2018

Add ENGINE_API to FPhysScene::AddPendingSleepingEvent and FPhysScene::AddPendingOnConstraintBreak. Useful when overriding FPhysXSimEventCallback via FPhysScene::SimEventCallbackFactory. ...

TestEqual(TCHAR*, TCHAR*) function is testing pointer equality instead of values

UE - Automation Test - Oct 1, 2018

A licensee has reported that the TestEqual(TCHAR*, TCHAR*) function tests for pointer equality instead of comparing two values, which does not accomplish what the function is meant to do. Regressio ...

Couldn't switch cameras when Orthographic camera is set with sequencer

UE - Anim - Sequencer - Oct 1, 2018

This problem does not seem to occur during game play. ...

Cannot save level after using BP_SunPosition

UE - Editor - Content Pipeline - Datasmith - Importer - Sep 29, 2018

Web Browser UMG Widget Does Not Work in DX12

UE - Graphics Features - Sep 28, 2018

The Web Browser UMG Widget does not work in DX12. Found in 4.20 CL# 4369336 and 4.21 CL# 4404204 ...