Infinite Script Recursion error crashes editor and produces UnrealScript errors in logs

UE - Gameplay - Blueprint - Aug 14, 2015

Macro that causes an infinite script recursion error crashes editor and produces errors in output log referring to UnrealScript. Frequency: 3/3 Crash Reporter; [Link Removed] ...

Crash when modifying BP custom event after deleting BP function

UE - Gameplay - Blueprint - Mar 24, 2017

If a BP function contains a Create Event node, deleting the function will cause the editor to crash when modifying any custom event of that BP. Regression: No - same behavior occurs in 4.14.3 Binar ...

Compiling any material in UE 5.5.1 without ShaderCompiler JobCache results in a crash

UE - Rendering Architecture - Shaders - Jan 15, 2025

Compiling any material with r.ShaderCompiler.JobCache=0 causes ShaderCompileWorker to crash. Reproduction steps cause a crash during Editor startup, but this bug may affect other scenarios where mat ...

Crash when creating a Material Instance of a Material with Material Attribute Layers expression connected to a Substrate Convert Material Attributes.

UE - Rendering Architecture - Materials - Mar 8, 2025

A UDN user has reported this crash [Link Removed] The user also reports that the editor will crash:If the material is loaded while in PIE.If the material is used in a level (crash occurs when the l ...

Crash when Deploying to iPad Air with BC4 Texture Compression Setting

UE - Platform - Mobile - Jun 7, 2016

App/project crashes when setting a texture's compression settings to BC4 and deploying to the iPad Air. As the user in the op states on AnswerHub, the problem seems to lie with specific texture com ...

Crash on Applying a Material with PN Triangles Tessellation to Large Landscape

UE - Graphics Features - Apr 21, 2015

When applying a Material with nothing in it but PN Triangles turned on to a Large Landscape, the engine will crash. Also Reproduced in Main Promotable-CL-2513846 ...

Crash occurs when Switching between Engine Scalability Settings after Adding Landscape Material

UE - Graphics Features - Nov 15, 2016

A crash occurs when the licensee modifies the engine scalability settings after clearing and reapplying a landscape material. ...

Crash while unhiding streaming level in multiplayer

UE - Networking - Sep 27, 2017

When unhiding a streaming level several times on the client there can be a crash. ...

Crash on Assigning Material to Element 1 in Reimported Static Mesh

Tools - May 15, 2015

[Link Removed] When you reimport a Static Mesh with an Added Material ID associated with it and in the Static Mesh Editor assign a material, the engine crashes. Also reproduced in Main Promotable- ...

Crash when enabling r.PSOPrecache.Resources due to check() in FSkeletalMeshObjectGPUSkin::GetUsedVertexFactoryData

UE - Rendering Architecture - Dec 3, 2024

The game crashes because of a nullptr SkinnedMeshComponent in  FSkeletalMeshObjectGPUSkin::GetUsedVertexFactoryData when r.PSOPrecache.Resources is enabled and a skeletal mesh is loaded due to a new ...