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. ...

Blueprint Class functions are overridden in packaged shipping project.

UE - Gameplay - Blueprint - Mar 14, 2015

When using a child blueprint that calls a parent blueprints tick and its functions, The event is not being called if you package the project for shipping Win (32-Bit) Pictures of the Parent BP are ...

Level Sequences in Level Instances

UE - World Creation - Worldbuilding Tools - Level Instances - Mar 20, 2023

Workaround is to specify Binding Overrides on the LevelSequenceActor through its Details panel as such (while editing the LI). ...

Crash when changing Animation Segment Playrate in Animation Composite

UE - Anim - Runtime - Aug 8, 2022

See [Link Removed] ...

Printing the result of the 'Get Move Ignore Actors' node will crash the editor

UE - Gameplay - Blueprint - May 6, 2015

Printing the result of the 'Get Move Ignore Actors' node will crash the editor. The Licensee found the issue while exploring a workaround for this JIRA:https://jira.ol.epicgames.net/browse/UE-14734 ...

Crash when updating instanced subobjects in a USTRUCT

UE - Gameplay - Blueprint - Jul 5, 2017

Attempting to edit array of instanced subobjects causes the editor to crash. ...

Doing a scene capture of a particle off screen on a thread other than the game thread in a packaged game asserts/crashes

UE - Niagara - Feb 15, 2018

From licensee: When building and running the package on windows or other platforms, the game stops at an Assert when a particle is being rendered (off screen) from a thread other than the game thre ...

[Submix][Recording] - Existing Sound Wave to Overwrite option has no effect

UE - Audio - Submixes - Jul 29, 2021

This is an old bug that looks like it never made its way into JIRA. Adding for documentation.  ...

Making changes to a Camera Shake while previewing the Camera Shake triggers a crash

UE - Anim - Sequencer - May 23, 2022

This is not a regression. Tested in //UE4/Release-4.27 CL 18319896  Making changes to a Camera Shake while previewing the Camera Shake triggers an Assertion upon compiling. ...

CitySample - Level MassCrowd - interactions with SmartObjects/ContextualAnimScene is broken in 5.5

UE - AI - Apr 9, 2025

The 5.5 version of the CitySample project, particularly the MassCrowd scene, was not properly maintained. The previously working functionality of NPCs being able to sit on a bench is now broken. CAS ...