Blueprint with ChildActorComponent causes BP set as child to become dirty on open/edit

UE - Gameplay - Blueprint - Mar 31, 2017

If a blueprint has its root component set in code, adding that blueprint as the child actor component of a second blueprint will cause the first to become dirty anytime the second is opened or edite ...

UTF-16 characters return incorrectly from StringToBytes/BytesToString conversion

UE - Foundation - Core - Jul 28, 2016

When a UTF-16 character (™ for example) is passed into a StringToBytes() function and then returned via BytesToString, the returned character does not match (in the case of ™, a double quotes is ret ...

On mouse up appears to be captured when hovering over a widget

UE - Editor - UI Systems - Apr 13, 2016

Widget appears to take focus on mouse up and this appears to have functioned differently in earlier versions ...

[CrashReport] Mac/Metal Intel compiler crash - UE4Editor-MetalRHI.dylib!CreateMTLRenderPipeline()

UE - Graphics Features - Oct 27, 2017

Mark S: This is an Intel compiler failure on macOS 10.12.6. Callstack from LogAssertion failed: [File:/Users/build/Build/++UE4+Release-4.18+Compile/Sync/Engine/Source/Runtime/Apple/MetalRHI/Privat ...

Tutorial Blueprints breaking unreal builds

Tools - Nov 15, 2017

Creating a Tutorial Blueprint in the main content folder of a new C++ project causes some errors with new projects if the Blueprint is moved afterwards. ...

Anim Notify States are ended when CustomTimeDilation is set to zero

UE - Anim - Runtime - Oct 12, 2022

UDN link: https://udn.unrealengine.com/s/question/0D54z00008BEDfJCAX/set-actor-time-dilation-to-0-during-a-animation-notify-state-cancel-it?fromCase=1 Notify gathering functions (e.g. UAnimSequence ...

Cvars Not Applied To iPad Pro Correctly

UE - Platform - Mobile - Dec 1, 2016

When creating a device profile that sets specific cvars for the ipad pro. They don't seem to be loaded or used in a launched game or in a packaged game. While testing in 4.10 if I changed the IOS d ...

Widget Blueprint breakpoints hit during a Tick event do not engage the debugger.

UE - Editor - UI Systems - Jun 13, 2024

The user comment on the Salesforce issue " This is a regression from the behaviour in 5.3.X, and I've reproduced it in 5.4.0, 5.4.1, and 5.4.2. The specific issue/change that caused this regression ...

Construction script is running more than once when hitting the compile button

UE - Gameplay - Blueprint - Apr 20, 2015

When the compile button is pressed the construction script will run 3 times. ...

Subtitles don't appear in matinee when scrubbing.

Tools - Sep 9, 2016

When verifying [Link Removed] (GitHub 2762 : Correct subtitle rendering when scrubbing) I found that subtitles will not render while scrubbing the matinee. [Link Removed] has since been closed, but ...