UI transparency breaks when dragging a game window around the screen

UE - Editor - UI Systems - Nov 20, 2017

When a game window launched from UE is moved around the screen, any transparent elements on the screen will turn fully opaque. The loss of transparency also causes some text to become blurry. This d ...

Frame 0 event does not get triggered when using SetPlaybackPosition

UE - Anim - Sequencer - Apr 17, 2018

An event at frame 0 of a sequence does not seem to get called when using "SetPlaybackPosition 0" to reset the playback position to the start. This seems to be a regression. 4.17.2, the frame 0 even ...

Animation FBX export is broken for ThirdPersonCharacter

UE - Editor - Content Pipeline - Datasmith - Exporters - Jul 20, 2018

It seems like the animation fbx exporter is broken. The mesh is exported just fine and can be imported in any application without issue. As soon as the animation is exported the mesh becomes broken ...

No Dynamic Shadows on Translucent Materials in iOS Preview

UE - Platform - Mobile - Jul 23, 2018

There are no dynamic shadows on translucent materials in the "iOS Preview" for the preview rendering level. Working as intended in 4.16 CL# 3561208, 4.17 CL# 3658906, and 4.18 CL# 3832480. Found i ...

"No value will be returned by reference" when calling Event Dispatcher with an Array

UE - Gameplay - Aug 14, 2018

When creating an Event Dispatcher that sends an array, a blue Note shows up on the bottom of the Call node stating that "No value will be returned by reference". This is a similar issue to [Link Rem ...

Orthographic View doesn't respect the default Character Rotation

Tools - Aug 22, 2018

Orthographic doesn't respect the default character rotation of -90 degrees. This is reflected when viewing the Third Person character in Right/Left and Front/Back Orthographic views. This issue was ...

Gameplay Debugger doesn't work in ShooterGame when "Run Dedicated Server" is checked

UE - AI - May 10, 2019

The Gameplay Debugger does not function in ShooterGame when "Run Dedicated Server" is checked. This issue only affects ShooterGame and works as expected in a Blank project or if "Run Dedicated Serve ...

Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes

UE - Graphics Features - Apr 1, 2025

When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...

Broken references after renaming template default folders

Tools - Jan 17, 2017

When a template project's default folders are renamed (such as Geometry in the First Person Template), the original folder name is still shown in the content browser. Relaunching the project will s ...

[CrashReport] UE4Editor_PackageDependencyInfo!FPackageDependencyInfo::InitializeDependencyInfo() [packagedependencyinfo.cpp:339]

UE - Foundation - Core - Mar 6, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: DepPkgInfo->bIni ...