Ensure When Pasting Timeline Node that was Previously Connected to a Node into a Function

UE - Gameplay - Blueprint - Nov 4, 2016

An ensure is occurring when pasting a timeline that was once connected to a node into a function in blueprint. Regression: No, this also occurs in 4.12.5. ...

Switching raytracing console variable in runtime can crash engine.

UE - Graphics Features - Lumen - May 13, 2020

Licensee reported that is caused by missing ECVF_RenderThreadSafe flag in these console variable definitions. r.RayTracing.Shadows r.RayTracing.AmbientOcclusion r.RayTracing.Reflections Here is a ...

Crash compiling a blueprint after changing a TMap value from Vector to Vector4

UE - Foundation - Core - UObject - Jun 29, 2020

REGRESSION: Issue does not occur in 4.24 Crash occurs when the user changes a blueprint TMap value from Vector to Vector4 and then compiles the blueprint. This seems to only occur with TMaps, as ...

Engine Crashes When SubAnimInstance is set up and Master Sequence is Set to Spawnable

OLD - Anim - Oct 20, 2017

Engine crashes when CharacterBP is dragged into the Shots track and Spawnable is checked and unchecked when character animation Blueprint has a SubAnimInstance set up. ...

Editor crash when deleting a outline folder with subfolders and using context menu

UE - Editor - Workflow Systems - Oct 3, 2023

A user has reported that when using the Scene Outliner in a large map that has many actors and nested folders in the Outliner, deleting a folder that has subfolders from the Scene Outliner with Dele ...

Crash when compiling Blueprint class based off C++ actor with a Niagara component that has a user color curve

UE - Niagara - Mar 6, 2020

When creating a blueprint class based on a C++ actor with a Niagara component, color curves will cause the editor to crash when compiling the blueprint. This will impact users creating their own cla ...

Blueprints break when implementing a duplicated BP interface along with the original

UE - Framework - Blueprint - Mar 1, 2024

When duplicating a blueprint interface, the GraphGuids of the original BP interface's function graphs are unchanged: function graphs across the two BP interfaces now have the same GraphGuid. This is ...

Crash occurs selecting Camera Actor and Cine Camera Actor at same time

Tools - Apr 11, 2017

Was reviewing test cases for new Bloom feature and was looking at different actors that make use of PP. Happened to select a Camera Actor and Cinematic Camera actor at the same time which led to thi ...

When use Sequence Camera Shake Pattern, Level Sequence occurs error

UE - Anim - Sequencer - Mar 28, 2022

When I apply the Sequence Camera Shake Pattern to a Sequencer's camera, I get an error when playing it. ...

Ensure when pasting copied nodes into an Object

UE - Gameplay - Aug 7, 2018

When copy and pasting nodes from an Actor Blueprint to an Object Blueprint the Editor stalls for a bit and an ensure occurs. This issue was reported and tested in 4.19.2 (CL-4033788). This issue ...