[CrashReport] Crash on Mac due to uncaught exception 'NSRangeException' - HIToolbox!DispatchEventToHandlers()

UE - Platform - Apple - Jun 22, 2017

This is a common and longstanding community crash on Mac. Users have not provided descriptions when they crash, so additional information is currently not available. A log file is attached. Call ...

Modifying ShooterGame header file for faster compiling causes crash behavior.

UE - Foundation - Core - Jan 11, 2019

Using bFasterWithoutUnity and MinFilesUsingPrecompiledHeaderOverride, on ShooterGame.Build.Cs results in Engine crash. ...

Editor crash when using Animation BP pose watch

OLD - Anim - Apr 7, 2020

We encountered a crash when using Anim BP Pose Watches to inspect poses on actors in a PIE instance. Specifically it seems ending the PIE session while the Anim BP is still watching the actor in the ...

Nanite shadow issue in commandline rendering

UE - Graphics Features - Nov 28, 2023

CreateD3D12Texture causes the Low Level Memory system to register two allocations for the same pointer on the same track channel

UE - Rendering Architecture - RHI - Oct 31, 2024

CreateD3D12Texture causes two OnLowLevelAllocs in LLM to be called with the same pointer and the same channel, leading to a warning. LLM WARNING: Replacing allocation in tracking map. Alloc/Free Mi ...

Editor crashes when using PCG SpawnActor with a DataLayer inside a Level Instance

UE - World Creation - Procedural Tools - Jun 4, 2025

A PCG actor is assigned to a DataLayer and placed inside a Level Instance. Then that Level Instance is placed into a World Partition map. When the SpawnActor node in the PCG graph is set to MergePCG ...

Using "Play Animation" node, if current animation has a looping timed particle it will continue playing

OLD - Anim - Jun 24, 2016

Calling "Play Animation", if current animation has a looping timed particle it will continue playing ...

Cursor Overlap events don't work on characters

UE - Gameplay - Sep 4, 2015

Setting up mouse over events for a character do not trigger. ...

Deleting an asset is unsuccessful if the asset is marked for add when using Git source control

Tools - May 3, 2017

Deleting an asset that is marked for add when using the Git source control plugin no longer actually deletes the asset. Instead the file will be removed from the Content Browser (it actually stays i ...

Planar Reflections distorted if Separate Translucency Screen Percentage less than 100%

UE - Graphics Features - Aug 19, 2020

Planar reflections with any value lower than 100 for SeparateTranslucencyScreenPercentage are skewed/distorted when moving the camera, not representing the correct image when the value is 100. ...