UBT Output log encoding does not match if non-ASCII characters are in the UBT output

UE - Foundation - Cpp Tools - UnrealBuildTool - Nov 21, 2019

UBT Output log encoding does not match if non-ASCII characters are in the UBT output. Before UE4.23, UBT output encoding problems only exist in the editor "Compiler Log" under Developer Tools, and i ...

Incorrect behavior after attaching an actor to a non-root component of another actor in the Editor

UE - Editor - Verse Class Editor - Jul 3, 2024

UE allows actors to be attached to other actors. More precisely, it allows the root component of an actor (child) to be attached to any component of another actor (parent). From now on, "parent" and ...

A Blueprint containing a Macro with a Wild Card input crashes when a Custom Event node has an additional input added

UE - Gameplay - Blueprint - Aug 16, 2022

This is a regression. Tested in //UE4/Release-4.27 CL18319896 In UE4 an error is thrown when attempting to add an input. A Blueprint containing a Macro with a Wild Card input crashes when a Custom ...

Crash on map change with non-null values for GPropertyColorationClass and request customizable property coloration color

UE - Editor - Verse Class Editor - Aug 7, 2023

This was found by a customer through a UDN, and they offered the fix for it, as well. The basic steps to reproduce the crash are as follows:call GEditor->SetPropertyColorationTarget(...) somewhere i ...

Non-Uniform Mobile Content Scale Values Render Black Screen when Launching to Mobile Device

UE - Platform - Mobile - Mar 3, 2015

When attempting to set the configuration for mobile devices within the Engine/Config/DefaultDeviceProfiles.ini, any value that is non-uniform like 1.2 or 1.6 will render a black screen after deployi ...

Light function broken on AMD GPUs

UE - Rendering - Architecture - Dec 6, 2023

The licensee reported this happening on the following cards with the latest driver versions: ● RX 6600 ● RX 5700 The Licensee reported it did not happen on these cards: ● RX 580 ● Non-AMD cards Our ...

[AI] Smart Object debug rendering is constantly showing in PIE and non-shipping game

zComponent - Archive - Dec 1, 2022

The debug drawing for ASmartObjectSubsystemRenderingActor is always enabled during PIE or non-shipping game builds. This leads to a blue debug box being drawn at all slot locations for every SmartOb ...

Component default data can be lost for a non-nativized Blueprint class that inherits the component from a nativized parent Blueprint class.

UE - Gameplay - Blueprint - Sep 5, 2018

This is a regression that was introduced by the fix for [Link Removed]. The fix makes an invalid assumption that instances of components whose archetypes are inherited by a non-nativized child Blue ...

Nativized builds will crash on launch if a non-nativized Blueprint references a User-Defined Enum property in a nativized Blueprint.

UE - Gameplay - Blueprint - Jul 20, 2017

EDL-related crash occurs on launch of exclusively-nativized build where a non-nativized BP references a User-Defined Enum property in a nativized BP. Related to [Link Removed], but this is a parall ...

[Attenuation][Spatialization] - If speaker output is set to stereo, the Surround 2D Non Spatialized Radius Mode doesn't generate any audio

UE - Audio - Dec 12, 2023

If Surround 2D is set as the Non Spatialized Radius Mode, there is no fallback option if the user's output is not a surround format (eg stereo). There is also nothing communicated in the Tool Tip. ...