Getting a TextBlock variable from the Return Value of a Create Widget node inside a Player Controller will cancel all the nodes before it in Standalone

UE - Gameplay - Blueprint - May 15, 2015

Getting a TextBlock variable from the Return Value of a Create Widget node inside a Player Controller will cancel all the nodes before it in Standalone. Does not occur in other PIE modes, and does n ...

FloatCurveAsset reference is lost when reopening a Struct

UE - Gameplay - Feb 18, 2020

Structs containing references to instances in the content browser of FloatCurves fail to store these data formats as default values. This was reported and tested in 4.24.2 (CL-11100242). This was r ...

First Person Template content is not available to be added to another project

UE - Content - Feature Pack - Nov 12, 2021

First Person Template content cannot be added to another project through the "Add Feature or Content Pack" function. This occurs in both 5.0-Early Access 2 and 4.27.1 Tested in //UE4/Release-4.26 ...

Huge performance hit when recording a demo (demorec)

UE - Networking - Jun 3, 2019

The current engine version (4.22) seems to suffer a huge performance hit when using the demo recording (demorec) feature. This issue is present in both the editor and the packaged game (developer bu ...

Contact Shadow artifacts with ray lengths despite length

UE - Graphics Features - Nov 17, 2016

Contact Shadows have more shadowing errors with lower to mid values than in 4.13 release when the feature was still considered experimental. Even low Contact Shadow Length value is causing issues. ...

Editor Crash with corrupted asset when opening within level or via the content browser.

Tools - Jan 5, 2017

Editor will crash when a skeletal mesh has been added to a level and then reopening the project later if you try and access this level. If you attempt to open the skel meshes in the content browser ...

GAS: Ability that destroys owning actor on activate causes crashes due to ABILITYLIST_SCOPE_LOCK

UE - Gameplay - Gameplay Ability System - Oct 31, 2023

A GameplayAbility that destroys its owning actor inside ActivateAbility() causes a crash, because actor destruction will modify the ability list but ActivateAbility() is called within an ABILITYLIST ...

Map load stalls in texture streaming code

UE - Graphics Features - Jun 13, 2017

A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...

Large Landscapes using World Composition have weird LODs when streamed out and back in

UE - World Creation - Worldbuilding Tools - World Composition - Mar 13, 2020

When World Composition Sublevels are streamed out and back in the LODs appear distorted. This reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview ...

[AI] Nav Modifier Volume inside of a Level Instance does not update navmesh when moved

UE - AI - Navigation - Oct 3, 2023

The issue is seen when using a normal navmesh inside of a World Partitioned level. Adding a Nav Modifier Volume to a Level Instance, and placing the Level Instance in the world will affect the navme ...