The result of the Attach target change operation using AttackTrack's ContextMenu varies depending on the flow

UE - Anim - Sequencer - Jul 6, 2018

At present AttackTrack's context menu has three patterns of Attach target change flowChange constraintBindingIDUse ExsitBindingUse NewBinding However, 1 and 3 can correctly change the target, but t ...

Editor Crashes When Attempting to Create/Open a Blueprint While 'Show Friendly Variable Names' is False

UE - Gameplay - Oct 12, 2018

When the 'Show Friendly Variable Names' option is set to false in Editor preferences, attempting to create (once you press 'Enter' to accept the new Blueprint name) or open a Blueprint causes the ed ...

Unable to launch version 4.24.1 after fresh installation. Assertionfailed IsValid()

Tools - Dec 31, 2019

User is receiving a crash after a brand new installation of version 4.24.1 NOTE: User is able to launch 4.20 - 4.23.1 without issue. "I tried reinstalling the editor build, updating all of my dr ...

C++ Class Creation Wizard does not setup include path properly when using a sub-directory with Public/Private Classes

Tools - May 7, 2020

The creation wizard is not correctly adding the #include path in the CPP file. To fix the issue to get the project to compile you have to add the path in the .CPP file within Visual Studio. In this ...

Certain options don't display in Context Sensitive search for Widget Blueprint until opening a regular Blueprint

UE - Gameplay - Blueprint Editor - Jan 3, 2023

Context Sensitive searches in Widget Blueprints is not working as expected in 5.1. I was able to reproduce this 4/4 times in 5.1, and confirmed that this issue is a regression as the search works as ...

Actors in always loaded sublevels are not immediately recorded into replays

UE - Networking - May 24, 2024

In FReplayHelper::ReplicateActor, we check Connection->ClientHasInitializedLevel(Actor->GetLevel()) to see if the actor should create a channel or not. However, the DemoNetConnection does not have a ...

COM Media Type error in video writer on 8K videos

TM - Rendering - Dec 12, 2024

360 videos set to 8K resolution will fail to render in Twinmotion 2024.1.2 and newer Render attempts will end abruptly shortly after being initiated with the following error message ion the logs L ...

Editor Crash When DFAO Viewport Has Zero Area

UE - Graphics Features - Apr 19, 2018

I've reproduced this crash in 4.16, 4.17, 4.18, 4.19, and Main. Per licensee: The editor crashes if distance field ambient occlusion is enabled and a viewport is resized to have zero height. Th ...

Reading LightAttenuationTexture Produces Unexpected Results With Forward Rendering

UE - Graphics Features - Jul 5, 2018

The expected behavior occurs in 4.19; unexpected behavior occurs in 4.20 and 4.21. Marking this as a regression. Per User: Reading the LightAttenuationTexture in a material receives interference ...

Crash when generating mip maps for texture

UE - Graphics Features - Dec 23, 2019

Generating mip maps results in crash and seems to duplicated 1x1 mip level. NOTE: The bug was originally reported in 4.23.1, however, for some reason I was able to open the texture in 4.23.1 afte ...