Crash after removing decal (using set fade out node) during design time and then hitting play

UE - Gameplay - Blueprint - Feb 5, 2019

When calling set fade out on a decal during design time via a custom event that is setup to be called in editor a crash will occur when clicking PIE ...

Crash when generating proxy mesh

Tools - Jul 12, 2019

Generating a proxy mesh with imported models and the simplify mesh flag set to true causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7288428), 4.24 (CL ...

BP - Exclusive nativization will fail at cook time if a BP class includes a ChildActorComponent with a Data-Only BP set as the ChildActor class.

UE - Gameplay - Blueprint - Apr 20, 2017

Note: This does not occur when the nativization mode is set to "Inclusive" in the Project settings. Current workaround: Ensure that the ChildActor class is NOT a data-only Blueprint, by adding scri ...

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor

UE - Graphics Features - Apr 22, 2019

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 5974510 ...

Crash when opening Post Process Material with Live Data Preview running in Profiler

UE - Foundation - Core - Feb 24, 2015

Edit: CrashReporter link: [Link Removed] When running the Session Frontend Profiler as a Live Data Preview and you open a Post Process material, the editor will crash to the desktop. Reproduced in ...

Undo, Redo, Undoing a blueprint actor Replace action causes a crash

Tools - Aug 4, 2016

Undo, redo, undo after issuing a replace actor action causes the editor to crash. Found on: //UE4/Release-4.13 CL-3078131 Crash reporter: [Link Removed] Regression from //UE4/Release-4.12 CL-3053 ...

Crash in UHierarchicalInstancedStaticMeshComponent::GetOverlappingSphereCount

UE - World Creation - Worldbuilding Tools - Foliage - May 15, 2018

A licensee has reported a regression from 4.18.3 to 4.19.2 that is causing crashes to occur in their project. The crash occurs when walking onto their foliage in a packaged game. This does not happe ...

Packaged Game Crashes When Launched with the -dx12 for Ray Tracing Features and PixelStreaming enabled

PixelStreaming - Apr 3, 2019

Packaged game crashes when launched with the -dx12 option and PixelStreaming is enabled. Found in 4.22 CL# 5660361 and 4.23 CL# 5704223 ...

Crash when calling UPoseableMeshComponent::CopyPoseFromSkeletalComponent() from Actor's Tick while unregistering

UE - Anim - Runtime - Apr 26, 2023

Under certain conditions, it appears that the function UPoseableMeshComponent::CopyPoseFromSkeletalComponent may crash because the BoneSpaceTransforms obtained from the source component are empty, p ...

Adding parent constraint to control rig in shot crashes the editor

UE - Anim - Anim in Engine - Mar 10, 2023

Adding a constraint to a control rig in a subsequence will crash the editor. ...