Ctrl + z still active in PIE

Tools - Jan 20, 2016

Users can select ctrl + z while playing in Editor causing PIE to stop and undo last change, often freezing the editor temporarily, and sometimes causing a crash. Workaround: This does not occur if ...

Streaming of array textures with mips results in nearest mips being black

UE - Graphics Features - Jan 20, 2020

The issue is discussed in this UDN:https://udn.unrealengine.com/questions/544210/crash-starting-up-in.html Key quote from UDN thread is:"Also, having made a texture array with 190 entries, it seems ...

Nested comments are not parsed correctly by UHT when a second UClass is declared

UE - Foundation - Cpp Tools - UnrealHeaderTool - Mar 14, 2016

Using nested comments when also declaring a second UClass in the same header file causes the UHT to have issues when parsing, resulting in a crash of UHT. ...

CommitMapChange doesn't fully deal with sub-levels

UE - Gameplay - Jan 12, 2017

Per https://udn.unrealengine.com/questions/329206/crashes-when-streaming-levels-in-414.html When inspecting the code for this report, it has become clear that the streaming levels of the incoming m ...

[CrashReport] UE4Editor_DetailCustomizations!FBrushDetails::OnClassPicked() [brushdetails.cpp:306]

Tools - Nov 10, 2017

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context296 // make sure the brushes are re ...

Assertion failed: PlatformNeedsExtraDeletionLatency()

UE - Rendering Architecture - RHI - Mar 5, 2019

Animating a HISM along a spline when many other HISMs are present will result in a crash in 4.22. Confirmed in 4.23 MAIN @ CL 5291468 ...

[CrashReport] UE4Editor_UnrealEd!FBlueprintEditorUtils::FindBlueprintForGraphChecked() [blueprinteditorutils.cpp:2206]

UE - Gameplay - Blueprint - Aug 29, 2017

This is an infrequent crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 2200 // Helper function to get ...

Assertion thrown while creating a Geometry Collection with Hardware Raytracing enabled along side r.RayTracing.Geometry.GeometryCollection 1

UE - Graphics Features - Apr 26, 2022

A raytracing project with hardware raytracing enabled and r.RayTracing.Geometry.GeometryCollection set to 1 triggers a crash when trying to create a geometry collection. ...

Invalid access location compressing a BC6h texture in the editor

RAD - Oct 29, 2024

Large texture crashes during Oodle compression with "-stompmalloc". It appears to be an internal Oodle error. Also tested on //UE5/Release-5.5/, CL: 37463908 ...

Long paths are not supported in NET 4.5

UE - Foundation - Cpp Tools - Aug 21, 2018

The editor has been modified to support long file names, but the packaging pipeline (which is written in C#) needs to be upgraded to NET 4.6.2 to enable this. Without enabling it, it crashes with a ...