[CrashReport] UE4Editor-ApplicationCore.dylib!invocation function for block in FMacApplication::DeferEvent()

UE - Platform - Apple - Dec 1, 2017

This is an infrequent Mac crash in 4.18.1. Users have not provided any descriptions. Callstack from Log2017.11.27-02.08.07:839][947]LogMaterial: Missing cached shader map for material FLightmassMat ...

Assertion thrown while deleting a Curve from a Control Rig asset - DetailsViewWrapperObject.cpp: 231

UE - Anim - Rigging - Control Rig - Apr 1, 2022

Assertion thrown while deleting a Curve from a Control Rig asset.  ...

Deadlock when running an asset validator commandlet with async skeletalmesh build

UE - Editor - Content Pipeline - Asset Build - Mar 10, 2023

[External Code]   UnrealEditor-Core.dll!FEventWin::Wait(unsigned int WaitTime, const bool bIgnoreThreadIdleStats) Line 1515 C++   UnrealEditor-Engine.dll!FAsyncTaskBase::WaitCompletionWithTimeout( ...

Editor crashes when creating a new level while the current level contains an Actor with an Actor Sequence Component

UE - Anim - Sequencer - Jan 5, 2022

This is not a regression. Tested in: //UE5/Main CL18218925 Binary - Crashed //UE5/Release-5.0 CL16682836 Binary - Crashed //UE4/Release-4.27 CL Binary - Crashed Having a level open that contains a ...

Parameter distributions can be reset to None in Cascade Particle Systems, causing Cascade to Niagara conversion to crash the editor.

UE - Niagara - Apr 18, 2022

Cascade to Niagara conversion causes the editor to crash due to any distribution parameter in the Particle Emitter being reset to none. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL# 1831 ...

ToggleDebugCamera Console Command doesn't disable an enabled DebugCamera

UE - Gameplay - Aug 5, 2019

The "DisableDebugCamera" node and the "ExecuteConsoleCommand" node with "ToggleDebugCamera" in the Command field do not disable an enabled Debug Camera. Found in 4.22.3 CL#7053642 Reproduced in 4.2 ...

Deadlock in UPhysicalAnimationComponent::UpdatePhysicsEngineImp

UE - Simulation - Core - Sep 13, 2023

Deadlock in Chaos during PIE; the main thread is in USkeletalMeshComponent::HandleExistingParallelEvaluationTask waiting for a task to complete, and a worker thread is running that task and is in US ...

Loading blueprint with soft actor reference during PIE corrupts data

UE - DEET - EditorLoader - Jun 13, 2024

The Soft Object Path loading code has special case logic for loading from Play In Editor, which tries to remap paths from the editor version of a map to instead point to an actor in a specific clien ...

[Sound Cue][Open World] - Crash when creating a Sound cue from an Ambient Sound actor on an Open World map

UE - World Creation - Worldbuilding Tools - OFPA - Apr 18, 2022

When trying to recreate an issue that resulted in [Link Removed], I came across this call stack.   Regression testing done in //UE4/Release-4.27.2 CL-18427296 and this issue did NOT happen. ...

Crash on FDeferredShadingSceneRenderer & FTranslucentPrimSet with Dynamic Directional and Lit Translucent FX

UE - Graphics Features - Nov 11, 2015

User reporting crash with a specific setup using Lit Translucent FX Clouds and a Day-Night Setup running on a Timeline from Level Blueprint. [Link Removed] 4.8 BUGG: [Link Removed] 4.9 BUGG: [Li ...