Crash when trying to export unsupported Paragon Skeletal Mesh asset in 4.23

UE - Editor - Content Pipeline - Import and Export - Sep 11, 2019

When the user tries to export the Skeletal Mesh of TwinBlast (a paragon character that can be purchased off the marketplace) in 4.23. As of the time of logging this bug it is not supported in 4.23, ...

[CrashReport] UE4Editor-MetalShaderFormat.dylib!FGenerateMetalVisitor::print_constant()

UE - Graphics Features - Sep 22, 2017

This is an early trending crash coming out of the 4.18 previews. It occurs on Mac, and all affected project names indicate it is related to AR. Users have not provided any descriptions of their ac ...

Compiling a Blueprint that uses a Select node with two different variations of Actor will crash the Editor in 4.9

UE - Gameplay - Blueprint - Jul 17, 2015

Compiling a Blueprint that uses a Select node with two different variations of Actor will crash the Editor in 4.9. In 4.8.2 binary, one input of a Select node will be disconnected on restarting the ...

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash

UE - Gameplay - Blueprint - Jun 28, 2015

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...

Crash when using StepToNextShot / PreviousShot with sequencer

UE - Anim - Sequencer - Jul 24, 2018

A crash occurs when you press the Shift key + [.] (Period) key after double-clicking on one of the arranged level sequences in the master sequence. The cause is ActiveTemplateIDs of FSequencer. The ...

[CrashReport] Fatal error: Couldn't find shader - FMaterial::GetShader()

UE - Graphics Features - Jul 20, 2017

This is a common crash affecting users in 4.16. User DescriptionsTried to edit the VivePreController Meshtried to edit SM_Skysphere after shaders had finished compiling. For no other reason than th ...

Debug display of TargetingSelectionTask_AOE with cylinder is unnaturally tilted

UE - Gameplay - Gameplay Ability System - Oct 30, 2024

The following code fixes the tilt : void UTargetingSelectionTask_AOE::DebugDrawBoundingVolume(const FTargetingRequestHandle& TargetingHandle, const FColor& Color, const FOverlapDatum* OverlapDatum) ...

Illegal reference to private object when cooking a child level sequence with a time warp track

UE - Anim - Sequencer - Apr 28, 2025

Slack: [Link Removed] Cook error: UATHelper: Cooking (Windows): LogSavePackage: Warning: UATHelper: Cooking (Windows): Referencers of MovieSceneTimeWarpSection /Game/ChildSequence.ChildSequence: ...

Web Browsers widget components stop accepting input when toggling visibility with a delay if there is more than 5 browsers

UE - Editor - UI Systems - UMG - Dec 5, 2022

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 Web Browsers widget components stop accepting input when toggling visibility with a delay if there is more than 5 browsers. This onl ...

Rearranging the position of enumerators in an Enum BP will change references to the enumerators inside Data Tables based on position rather than value

Tools - Nov 12, 2015

Rearranging the position of enumerators in an Enum BP will change references to the enumerators inside Data Tables based on position rather than value. Reproduced in 4.8.3 binary, 4.9.2 binary, 4.1 ...