Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection

UE - Rendering Architecture - May 30, 2025

Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection (Experimental in 5.6). The licensee describes their crash, their analysis, and a proposed fix: This crash ...

Server travel from Shooter Game level Highrise crashes editor

UE - Networking - Nov 17, 2014

If a person is on the Shooter Game level Highrse and uses the blueprint node "Execute Console Command" to server travel to any other level the editor will crash. In PIE mode the editor will hang at ...

Crash when visualizing DOF Layers

UE - Graphics Features - Mar 30, 2022

I managed to reproduce this crash either using CineCameraActors or CameraActors, with a variety of DOF settings. It seems that piloting the camera and having any kind of DOF active on the camera wil ...

Engine Crashes When Switching To Metal Preview While Landscape Tool Is Active

UE - Platform - Mobile - Nov 25, 2016

If you are in the landscape edit mode and you enable the preview shader model for High end mobile/Metal the engine will crash if you wait a while for the shaders to finish compiling. ...

Editor crashes when child blueprint uses billboard in construction script

UE - Gameplay - Blueprint - Jun 24, 2015

The editor is crashing when a child blueprint uses a billboard in the construction script after hovering over 'apply instance changes to blueprint' from the details panel. ...

Crash occurs when importing attached FBX with default import settings

UE - Editor - Content Pipeline - Import and Export - Dec 22, 2016

While verifying a bug for 4.15 UE-39952 , I tried to repro in 4.14.2 and the editor crashed while attempting to import the attached FBX In 4.15, the Editor does NOT crash a window pops up stating t ...

Duplicating a blackboard node within a behavior tree will cause a crash

UE - AI - Jul 16, 2015

When using the shortcut Crtl+W to copy a blackboard node within a behavior tree the editor will crash ...

[CrashReport] Crash in UViewportWorldInteraction::FindTransformGizmoAlignPoint

UE - Editor - Workflow Systems - Apr 27, 2017

This is an early trending crash coming out of the 4.16 Preview. Users have not provided any additional information about this crash. This was also experienced internally by Alex.P [Link Removed] ...

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 ...