Editor Periodically Has Performance Drops In Basic Scenes

Tools - Dec 27, 2019

The Editor experiences performance drops even in the default basic level when left alone running. I experienced them every ~3 seconds. My graph didn't show the drops very clearly so the fps counter ...

Spline don't deform landscapes in certain setups

UE - LD & Modeling - Terrain - Landscape - Dec 26, 2019

The splines do not deform the landscape when the path is made with a straight spline. When you move a spline point to bend the road it will deform the landscape, but the deformation accuracy seems t ...

Meta Allowed Class Doesn't Allow All The Included Classes

Tools - Dec 24, 2019

The Meta Allowed Classes specifier doesn't allow the user to assign anything of the second type. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#10868506 ...

Materials Are Brighter in 4.24 and 4.25

UE - Graphics Features - Dec 24, 2019

Materials are brighter in 4.24 and 4.25 than they were in 4.23. I created the same basic material in 4.23, 4.24, and 4.25 and the 4.23 iteration was slightly darker. Found in 4.24.1 CL#10756747 Rep ...

Reading curves from an FBX incorrect with FFbxCurvesAPI

UE - Anim - Sequencer - Dec 20, 2019

A licensee has brought up some inaccuracies in the reading of curve data from FBX files: #1, Remove calls to SetKeyInterpMode, SetKeyTangentMode, SetKeyTangentWeightMode, and change them to NewKey. ...

New 'UncookedOnly' modules can incorrectly be included as a build dependency after nativization of a Blueprint asset

UE - Gameplay - Blueprint - Dec 20, 2019

The new 'UncookedOnly' module type that was added in 4.24 is not visible to Blueprint nativization, and thus it does not know to exclude these module types from the generated Build.cs file when they ...

Replay scrubbing causing issues with placed actors with negative scales

UE - Networking - Dec 19, 2019

A replicated actor placed in a map with a negative scale value becomes inverted when scrubbing a replay. ...

Duplicating a Possessable Track in Sequencer should duplicate the bound actor and bind the duplicate track to it

UE - Anim - Sequencer - Dec 19, 2019

Duplicating a possessable object binding in Sequencer causes a new sub track added to the existing possessable with a missing binding. It's unclear what the behavior should be here, as duplicating a ...

DX12 crash when fullscreen app looses focus.

UE - Rendering Architecture - RHI - Dec 19, 2019

Creating a new C++ Synth Component results in a failed compile linker error.

UE - Audio - Dec 19, 2019

Upon creating a new Synth Component C++ Class in Unreal 4.24, the compiler will fail to compile with a Linker error. ...