TSoftObjectPtr instance loses reference after ClientTravel

UE - Gameplay - Apr 3, 2018

If a TSoftObjectPtr on an instance has a reference to another instance in a level, that reference will be lost when a client travel is performed to travel to that level. Regression?: No This occurr ...

Cast Hidden Shadow Creates Shadow Artifacts in Splitscreen

UE - Graphics Features - Apr 18, 2018

When using Cast Hidden Shadow in splitscreen, the shadow from your character has severe shadow artifacts. This has been observed in 4.18.3 as well as 4.19.1.  ...

Tessellation not working properly on Vulkan

UE - Graphics Features - Jan 25, 2018

When a user launches content examples with -vulkan tessellation will not be working. Everything tessellated will appear as if it has no tessellation. This issue is also occurring in 4.18 ...

NPC - Texture Sample DI does not work on Niagara Parameter Collections

UE - Niagara - Nov 8, 2023

Texture sample DIs no longer work when used with Niagara Parameter Collections. This seems to affect Volume Texture DIs based on customer reports, but I have not confirmed this.  ...

NavMesh does not build correctly to SkeletalMesh collision

UE - AI - Mar 16, 2015

NevMesh cuts out holes for collision incorrectly with Skeletal Meshes. Skeletal Meshes with "Can Ever Affect Navigation" set to true and that have a Physics Asset are capable of causing this. ...

Reduced Tessellation at edge when using world displacement

UE - Graphics Features - Jan 11, 2016

Adding a material to a mesh that is affected by world position offset has reduced tessellation around the meshes edges. This is seen when viewed in wireframe and is influenced based off of the angle ...

meta specifier ArrayClamp does not work with array in struct

UE - Gameplay - Blueprint - Sep 14, 2016

Giving an int32 variable the specific ArrayClamp has no affect when the specified array is defined inside a USTRUCT(). Variable is able to be set to a value outside of specified struct's range. ...

Can't undo blueprint/material movement done by arrow keys

UE - Gameplay - Blueprint - Feb 8, 2017

When moving nodes in materials and blueprints using the undo option doesn't undo the movements made by the arrow keys. This issue affects anything that uses nodes on an event graph. ...

OnUrlChanged does not fire on mobile

UE - Platform - Mobile - Sep 28, 2017

When using On Url Changed event on mobile devices, the event does not appear to fire as expected. Tested on iphone 5 As a note: The function GetUrl appears to be similarly affected. ...

Error on Attempting to Save Map Containing Actor Sequence Component

UE - Anim - Sequencer - Sep 28, 2017

colored text+Link to screencast of repro steps: + [Link Removed] -May take some clicking around even between windows -Will not save after this -Does not affect 4.16 ...