PIE with Auto Recompile Blueprints disabled generates an error message asking to compile PROTO_BP Blueprints

UE - Gameplay - Blueprint - Mar 17, 2015

PIE with Auto Recompile Blueprints disabled generates an error message asking to compile PROTO_BP_Blueprint_0 and PROTO_BP_AnimBlueprint_0. Clicking Yes compiles, but any attempt to PIE thereafter g ...

Constant Feedback/Static Noise while In Editor

UE - Editor - UI Systems - Slate - Jan 22, 2015

When running the Editor some users are reporting they are hearing consistent static noise. Currently there are some random workarounds to reduce or eliminate this noise, but the source of the proble ...

Crashes in movie player on Android

UE - Platform - Mobile - Apr 23, 2015

There are a number of reported movie crash issues, but this report likely covers the main cause. Garbage collection changed in Android 4.0 and we are triggering a check that does not happen with ba ...

FindCollisionUV always returns False on Skeletal Meshes

UE - Gameplay - Dec 14, 2016

FindCollisionUV always returns False on Skeletal Meshes User Description: In UE 4.14.0, the blueprint "Find Collision UV" functions doesn't work properly with Skeletal Meshes. While it works fine ...

Editor crashes on Mac when launching with the command -MacExplicitRenderer=0

UE - Graphics Features - Jan 19, 2017

Trying to launch the editor with the command -MacExplicitRenderer=0 causes a crash. At the time of the crash, the following line appears in the log:LogMac:Error: appError called: Assertion failed: A ...

Freeze occurs after some time when tick group is set to TG_PostUpdateWork on a class

UE - Gameplay - Nov 21, 2017

Multiple users have reported an issue where their packaged games are freezing after an indeterminate period of time. The reproduction steps and logs of each user are different but the reproduction s ...

Exceptions can no longer be enabled for ProjectEditor targets

UE - Foundation - Cpp Tools - Jul 16, 2018

It is no longer possible to enable C++ exceptions for the ProjectEditor target in code projects that use the binary Engine. Some fixes that were made for 4.19 now correctly show an error message if ...

Scene Depth Buffer corruption with VR on AMD GPUs

UE - Platform - XR - Sep 12, 2018

Depth buffer corruption/artifacts when using VR with certain AMD GPUs Tested with Oculus DK2, User reports with Oculus Rift ...

Reimporting of skeletal mesh results in a scrambled skeletal mesh

UE - Editor - Content Pipeline - Import and Export - Oct 17, 2025

When we reimport our skeletal meshes with updated FBXs, the resulting skeletal mesh is scrambled up. See Scrambled.jpg attached. This does not affect every single reimport but happens randomly. W ...

Keyboard Shortcuts for Blueprint Editor Do Not Appear until Opening Blueprint

Tools - Feb 11, 2015

In any newly opened project the 'Keyboard Shortcuts' within the 'Editor Preferences' for the 'Blueprint Editor' do not appear until you have opened a blueprint within the project. After closing and ...