SceneCapture2D loses Blendable when Capture Every Frame is turned off even if Scene Capture is updated

UE - Graphics Features - Mar 16, 2016

Scene Capture 2D components lose access to the Blendable assigned to them if they are not set to Capture Every Frame at all times. If it gets turned off, the blendable can never be reapplied at run ...

Set Members in Struct node doesn't work if the Struct is contained within an Array

UE - Gameplay - Blueprint - Dec 9, 2014

Set Members in Struct node doesn't work if the Struct is contained within an Array. ...

[CrashReport] UE4Editor_Renderer!FMaterialShader::VerifyExpressionAndShaderMaps() [shaderbaseclasses.cpp:148]

UE - Graphics Features - Jun 14, 2017

This is a common crash occurring in the 4.16 release. It is spread out across many different CrashGroups with slight variations in Callstack. Additional information is not available at this time. ...

Crash during package save due to the async text mesh build in Text3D

UE - Virtual Production - Sep 22, 2022

Saving a package in the editor while there is a queued text mesh build will cause a fatal error because the build will execute during the save, and creating objects while saving is not allowed. This ...

Validity of a workaround for an issue with MobileRenderer where RecieveShadow can't be rendered properly

UE - Platform - Mobile - Nov 11, 2024

Dynamic instancing is likely causing an issue where meshes that need shadows are getting combined with meshes that do not need shadows causing missing shadows. Tests were done with CSMs. Reproducti ...

Stalled cook due to PoseSearchDatabase DDC storage/retreival

UE - Anim - Gameplay - Mar 27, 2025

reported via UDN: [Link Removed] ...

Control Rig settings are not retained between editor sessions or carried into deployed game

UE - Anim - Rigging - Control Rig - Jun 10, 2020

Control Rig settings are not retained between editor sessions or carried into deployed game ...

Crash occurs when duplicating a State Machine in the My Blueprint panel within an Animation blueprint

UE - Anim - Runtime - Anim Blueprints - Aug 17, 2022

This is not a regression. Tested in //UE4/Release-4.27 CL18319896 Crash occurs when duplicating a State Machine in the My Blueprint panel within an Animation blueprint. ...

Make Writable button does not work as intended when using Subversion

Tools - Oct 22, 2015

When using the Make Writable button, it is intended to make the file editable without the prompt to check an asset out popping up on subsequent attempts to save the asset. This does not work for Sub ...

Movie playback doesn't work on Mac and iOS the way it did before

Tools - Aug 5, 2016

New media framework is making Mac/iOS not render ...