ConstructorHelpers::FObjectFinder failing to compile with UPaperFlipbook

UE - Foundation - Core - Feb 21, 2017

If ConstructorHelpers::FObjectFinder is used with UPaperFlipbook as its class specifier, compiling the code fails with the following error: Error C2664 'void ConstructorHelpers::ValidateObject(UObj ...

Duplicates of Actor Blueprints have a Blank, Black preview Window

UE - Editor - Content Pipeline - Content Browser - Feb 21, 2017

Duplicates of Actor Blueprints have a blank, black preview instead of the preview of the original (See sample image). Not a regression, occurs in UE4.14.3 as well ...

Crash When Trying to Draw a Material to a Render Target where Source Material is using AlphaComposite + Unlit Mode

UE - Graphics Features - Feb 22, 2017

The issue occurs when trying to Draw a Material to a Render Target where the source material is using AlphaComposite + Unlit mode. This is an attempt at the solution proposed by Ryan Brucks to allow ...

FAssetRegistry::SaveRegistryData fails check on redirected umaps

Tools - Feb 22, 2017

When FAssetRegistry::SaveRegistryData() is invoked for a umap redirector it will fail the check check(!bIsMap || (InDependencyType == EAssetRegistryDependencyType::Soft)); Because the redirector ...

Crash using Import Commandlet on FBX that gets "Bones are too small" error when imported manually

UE - Editor - Content Pipeline - Import and Export - Feb 23, 2017

Crash using Import Commandlet on FBX that gets "Bones are too small" error when imported manually Error from manual import: Warning The bone size is too small to create Physics Asset 'ButterflyVa ...

Updated HISMCs occasionally flicker for one frame

UE - World Creation - Worldbuilding Tools - Foliage - Aug 27, 2015

Updated HISMCs occasionally flicker for one frame on some machines. User reports an AMD 7950 and I see it on an AMD 7970. Occurs only in packaged builds. ...

Mouse Up Detection lost inside Scrollbox when dragging

UE - Editor - UI Systems - Feb 28, 2017

Mouse Up Detection lost inside Scrollbox when dragging and releasing inside. This issue occurs when trying to detect on mouse up for a scroll box Regression: This issue also occurs in 4.14.3 ...

Widget not able to take input upon launching game

UE - Editor - UI Systems - Feb 28, 2017

Widgets are not getting proper input when a game is first launched. Until the player clicks in the window at least once, widgets will not respond to any hover events and the first click will not hav ...

Crash While Running Project With d3ddebug Enabled (fix provided)

UE - Graphics Features - Mar 6, 2017

A licensee encountered a crash during InjectTranslucentLightArray: according to them they fixed the issue in ShadowProjectionCommon.usf: /** Cube map texture. */ TextureCube<float> ShadowDepthCub ...

Crash after clearing the animation from a sample point in a 1D Blendspace

OLD - Anim - Mar 8, 2017

Regression: YES, sort of. The ability to change the animation from a dropdown didn't exist in 4.14 Error message: Fatal error: [Link Removed] [Line: 160] Ran out of memory allocating 51539607528 ...