Sequential Level Loading in Python causes Crash

UE - Editor - Workflow Systems - Apr 16, 2019

Loading all the levels selected in the Content Browser and running the aforementioned Python script causes the editor to crash Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 5 ...

Crash when duplicating the Child Actor Component class

UE - Gameplay - Components - Jun 3, 2019

Creating a blueprint class with a child actor component and setting its actor class to Point Light, then copying and pasting it causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.1 ...

Virtual Texturing causes crash

UE - Graphics Features - Jul 29, 2019

Virtual streaming a 4K texture and setting the max texture size to 2048 causes the engine to crash. Tested in 4.21.2 (CL - 4753547), 4.22.3 (CL - 7053647), 4.23 (CL - 7445012), 4.24(CL - 7646041) ...

Adding Niagara system to a projectile causes a crash

UE - Niagara - Jul 29, 2019

Adding a Niagara system to a BP_Projectile in a C++ First Person Project  and then restarting it causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 744 ...

FloatCurveAsset reference is lost when reopening a Struct

UE - Gameplay - Feb 18, 2020

Structs containing references to instances in the content browser of FloatCurves fail to store these data formats as default values. This was reported and tested in 4.24.2 (CL-11100242). This was r ...

First Person Template content is not available to be added to another project

UE - Content - Feature Pack - Nov 12, 2021

First Person Template content cannot be added to another project through the "Add Feature or Content Pack" function. This occurs in both 5.0-Early Access 2 and 4.27.1 Tested in //UE4/Release-4.26 ...

Automation Wait for Loading node crashing with fatal error in shipping build

UE - Automation Test - Jun 8, 2023

Using the Automation Wait for Loading node in a shipping build causes a fatal error when the node is called. This issue is occurring in Binary  //UE5/Release-5.2 @ CL 25360045  This issue is occur ...

Crash when force deleting Dataflow Graph

UE - Editor - Workflow Systems - Jul 31, 2023

When force deleting a dataflow graph with the dataflow graph editor open it will crash the engine. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binar ...

Temporal Super Sampling flickering temporal analysis visualisation mode indicates temporal analysis disabled for all objects on screen

UE - Graphics Features - Jan 24, 2025

This can also be observed while running in PIE mode using the console command "r.TSR.Visualize -2". It is not clear whether it is only the TSR flickering temporal analysis visualization that is exh ...

Skylight does not honor the Visibility settings when hidden

UE - Graphics Features - Sep 19, 2016

The Skylight actor cannot be disabled when using 'Hide' from the right-click context menu or using the visibility eye icon in the World Outliner. ...