Subobject components do not have undo functionality within the level

Tools - Jan 4, 2021

When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not.  I could not repro this behavior with non-native component ...

Game projects that rely on legacy include paths are not compatible with Blueprint nativization.

UE - Gameplay - Blueprint - Nov 10, 2018

Using legacy-style #include paths in a game project is allowed by UBT by default, but it's currently not compatible with Blueprint nativization, as it does not account for this possibility. Current ...

[Submix][Recording] - Existing Sound Wave to Overwrite option has no effect

UE - Audio - Submixes - Jul 29, 2021

This is an old bug that looks like it never made its way into JIRA. Adding for documentation.  ...

Retargeting Pose From Mesh Does Not Retarget With Source Mesh Component and Skeletal Mesh Variable Types

UE - Anim - Rigging - Retargeting - May 11, 2022

Occurs 5/5 times *Regression *does not occur: No Retargeting Pose From Mesh node in //UE4/Release-4.27.2. Retarget Pose From Mesh node does not retarget when used with Source Mesh Component and Sk ...

Unable to dynamically load an animation blueprint in a packaged game

UE - Gameplay - Jul 27, 2015

Dynamically loaded animation blueprints do not work within packaged product. Download the pre-made project from here: [Link Removed] ...

A crash can occur when multiple Actors are spawned/destroyed simultaneously with each one loading an asset.

UE - Foundation - Core - Jan 6, 2017

A crash can occur if multiple Actors are spawned/destroyed simultaneously, with each Actor loading an asset when it is spawned. This does not occur 100% of the time, but it does occur quite frequent ...

[Sound Submix] - Dry Level of a Submix is calculated differently whether or not there is an effect in the chain

UE - Audio - Submixes - Jan 21, 2021

There is a discrepancy is how the output volume of a submix is calculated when the effect chain is and is not populated. When there is no effect on the submix, the Dry Level adds additional gain to ...

Visual Logger Timeline is not updated when Viewport is in fullscreen

UE - AI - Debugging - Jan 14, 2025

Context The Visual Logger is a powerful debugging tool to create and record visual representations, and allows people to review the data. Problem The problem is that it does not record things don ...

Adding a Reroute node to a function's array output will cause the Function node to be missing the output

UE - Gameplay - Blueprint - Mar 26, 2015

Adding a Reroute node to a function's array output will cause the Function node to be missing the output. This seems to be only effecting Arrays. Standard variables work fine. ...

Set Ignore Look Input stacks the resulting value each time it is called

UE - Gameplay - Jan 5, 2015

Set Ignore Look Input stacks the resulting value each time it is called. If Set Ignore Look Input is called more than once with the same value, it will take as many calls with the opposite value to ...