Packaging a Project With Nativize Blueprints Enabled Fails With Setter for an Array of Classes

UE - Gameplay - Blueprint Runtime - Mar 23, 2017

Packaging failure occurs with nativize blueprints enabled when you have an array of classes and you try to set it with an array from an instance of a native C++ class. Found in 4.15.1. Reproduced i ...

Crash occurs while clicking through the Landscape Overview Tutorial

Tools - Apr 28, 2017

Crash occurs while progressing through the Landscape Overview tutorial, after the step "After pressing the Create Button, your level should now have a Landscape Actor inside of it" This is a regres ...

[CrashReport] UE4Editor_MeshPaint!FBaseMeshPaintGeometryAdapter::GetVertexPosition() [basemeshpaintgeometryadapter.cpp:70]

UE - Simulation - Physics - Character - Nov 2, 2017

This is a trending crash coming out of 4.18, and may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Source Context 57 const TArray<FVec ...

Unknown by landscape material warning logspam when launching onto Android/HTML5/iOS/tvOS

UE - LD & Modeling - Terrain - Landscape - Dec 6, 2017

Unknown by landscape material warning logspam when launching onto Android Also occurs in Main @ CL 3792526 --Reproduces in //UE4/Release-4.18 at CL 3792614 --Reproduces in //UE4/Release-4.18(.1) at ...

Content ordering for assets with full numeric names.

UE - Editor - Content Pipeline - Content Browser - Feb 5, 2016

Content files that are labeled with both text and numeric values sort correctly, but files containing only numbers, don't share this behavior and end up with weird sorting order. MyMat_20, MyMat_20 ...

Scrollbox widget moves much slower when using a gamepad

UE - Editor - UI Systems - Aug 1, 2018

Using the gamepad to scroll a scrollbox causes the scrolling to move slower. Tested in 4.18.3(CL - 3832480), 4.19.2 (CL - 4033788), 4.20.1 (CL -  4233996), 4.21 (CL  - 4245542) ...

Crash upon selecting CameraComponent in Sequencer when level is locked

UE - Anim - Sequencer - Aug 14, 2018

Selecting a Camera Component in the Sequencer window when the level is locked causes the Engine to crash.  This was reported and tested in 4.20.1 (CL-4233996). This was reproduced in 4.19.2 (CL-403 ...

Using -90 for New Relative Rotation on the Y axis causes sporadic behavior

UE - Gameplay - Feb 20, 2019

Setting up New Relative Rotation with some Static Mesh Actors in the Level Blueprint will have strange results if -90 is used in the Y Relative Rotation. Changing off of -90 will result in normal be ...

Flickering artifacts are rendered when using Sky Atmosphere Component with Vulkan

UE - Rendering Architecture - RHI - Jul 16, 2020

Rendering the SkyAtmopshere component using Vulkan with and without Vulkan (SM5) enabled causes artifacts to appear on screen on Windows and Linux.  This was reported and tested in 4.25.1 (CL-135 ...

Can't Play In Editor after editing color value in color picker

UE - Anim - Runtime - Oct 23, 2020

Can not launch PIE after set the value in color picker window to enter a number from the keyboard. Choose the color value with the picker or close the window with the Cancel button to return to it.  ...