In Editor, Blueprint resources are not freed up when the Blueprint is closed

UE - Framework - Blueprint - Feb 16, 2024

It appears that the preview scene used to render thumbnails is not destroyed after a thumbnail is rendered, even after the blueprint editor is closed and GC is run. Also found in Release-5.4, CL: 31 ...

Attempting to Change Global Variable to Local Variable in a Function Containing a Timer Causes Compiler Error

UE - Gameplay - Blueprint - Sep 14, 2016

When attempting to replace a global float variable with a local float variable that is connected to a Timer node in a blueprint function, an error will appear after trying to compile. This does not ...

AI Perception does not detect multiple actors across multiple sublevels

UE - AI - Oct 26, 2016

AI Perception does not detect multiple actors across multiple sublevels. It appears that sublevels recognize the persistent level actors but do not recognize other sublevel actors. In the sample pro ...

Error for having an extra semicolon before a UPROPERTY declaration is not thrown inside of a USTRUCT

UE - Foundation - Core - Oct 26, 2016

Having an extra semicolon on the line before declaring a UPROPERTY will cause UHT to miss parsing the following UPROPERTY. This is expected, but an error is usually given when this is the case. This ...

Editor Type Plugins are Included in Packaged Development Build

UE - Foundation - Cpp Tools - UnrealBuildTool - Feb 19, 2016

When you declare a plugin as "Editor" type, the plugin is still included in a packaged development build. Found in 4.10.3 binary. Reproduced in 4.11 Preview 5, and Main CL 2870013 ...

Additive BSP Selections Acting Grouped after Building Geometry

UE - LD & Modeling - Modeling Tools - BSP - Sep 14, 2016

After building geometry with multiple box brushes stacked on top of one another, the selection no longer isolates a single brush but acts like all of the brushes are combined. This issue can be res ...

Input isn't recognized for Shift+F, or just the F key when the Shift key is also pressed down

UE - Gameplay - Input - Nov 23, 2021

This is a regression Tested in: //UE4/Release-4.26.2 CL15973114 Binary - Did not reproduced //UE4/Release-4.27.1 CL17735300 Binary - Reproduced //UE5/Release-5.0-EarlyAccess CL16682836 Binary - Repr ...

After upgrading a project from 4.7 to 4.8 and compiling a blueprint that casts to and pulls a variable from a widget will cause a freeze if the widget is then compiled

UE - Gameplay - Blueprint - May 7, 2015

If the user has a project that casts to a widget to pull out a variable in a 4.7 project. This can cause a freeze after upgrading the project to 4.8 preview. This happens when the user compile the b ...

Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph

UE - Rendering Architecture - Materials - Jun 6, 2022

This is a regression testing in //UE4/Release-5.0 CL#18319896 Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph. ...

If shot track ends short of the Master Sequence length, all actors return to default state

UE - Anim - Sequencer - Oct 14, 2016

If shot track ends short of the Master Sequence length, all actors return to default state. This becomes an issue when you need the actors manipulated in Shot 1 to maintain their "end state" into s ...