Compiling after adding a StaticMesh Component to a Child Blueprint of a Parent Blueprint causes the inherited StaticMesh Component to disappear

UE - Gameplay - Blueprint Editor - Oct 5, 2017

The Inherited StaticMesh Component in a Child Blueprint of a Parent Blueprint disappears when compiling the Blueprint. Regression: Yes Occurs in: 4.17.2, 4.18(Preview), and 4.19(Main) Does not o ...

Some menu items are cut off when Window's Scaling is set to 150% or higher

UE - LD & Modeling - Terrain - Landscape - Nov 8, 2017

When a user sets Window's scaling to 150% or higher, some menus in Unreal Engine go off the screen and users are unable to select some options. Found in 4.18 3709383 Reproduced in 4.17 3658906 an ...

Wrong LOD Selected on Skeletal Mesh with Active Scene Capture

Tools - Dec 11, 2017

Skeletal Meshes with LODs are not able to change LOD levels when a SceneCapture Actor is present. The LOD selected for the Render Target of the Scene Capture is used also for the main viewport. This ...

[CrashReport] UE4Editor-CoreUObject.dylib!TFastReferenceCollector<true, FGCReferenceProcessor<true>, FGCCollector<true>, FGCArrayPool, false>::ProcessObjectArray()

UE - Foundation - Core - Jan 24, 2018

Comments from users:UEQA - Christina.Sturgill - Release-4.18 CL3691775 - Crashed running Match3 on Mac after game loads.Hit Save All. This crashed the Editor.Used Command+Shift+S to Save All after C ...

Editor crash when Use Dynamic Material Instance is set to "True" on landscape

UE - LD & Modeling - Terrain - Landscape - Mar 23, 2018

Setting "Use Dynamic Material Instance" to true in the landscape details will cause the editor to crash. Reproduced in 4.19.0 CL 3944462 and 4.20 Main. This feature is not available in 4.18.3. ...

Keep State doesn't work when using an animation asset together with Anim BP

OLD - Anim - May 11, 2018

When using Keep State together with an Animation Blueprint on a Character, the Anim BP will override the Keep State and transition over to the idle animation as the animation in the slot no longer r ...

Project Launcher does not include Prereqs. Ignores Include Preqeq setting and the -prereqs argument

UE - Foundation - Cpp Tools - Aug 3, 2018

When using the Project Launcher to package a project, the Include Prerequisites setting is ignored. Attempting to add the -prereqs command to the arguments also does not include these, which is what ...

Curves in compressed additive animations interpolate incorrectly when two keys in a row have the same value

OLD - Anim - Oct 16, 2019

Curves compressed from additive animations will not interpolate correctly if they have two keys in a row with the same value. The second key will be ignored, leading to the curve interpolating earli ...

Corrupted Japanese text when packaging for Android

UE - Platform - Mobile - Apr 17, 2020

Garbled text is displayed when creating Android package. It did not occur in my colleague's environment using English OS, but occurred in my environment using Japanese OS. This issue should be fixed ...

Improper include generated when C++ class is in a subdirectory

UE - Editor - Workflow Systems - Jun 7, 2022

This is not a regression from 4.27.2, however, a similar issue was fixed in 4.26. Generating a C++ class that is in a subdirectory generates the #include "Subdirectory/Class.h" instead of #include ...