Artefacts with Volumetric Clouds

UE - Graphics Features - Nov 2, 2022

(Enduring Games) Please see UDN - Case includes project and potential fix from customer. Need to verify that it does not affect other parts of the volumetric composition. bHasValidSamples is the sam ...

Attached Project Crashes When Attempting to Open Blueprint

UE - Gameplay - Blueprint - Nov 11, 2015

The project in question: [Link Removed] The user is experiencing an issue where they've fixed compile errors on their NPC blueprint, and now are unable to open it without experiencing a crash. Righ ...

Last Index Node Changes Size And Shape Unexpectedly

UE - Gameplay - Blueprint - Oct 28, 2016

The Last Index node will change size and shape in way that isn't consistent with other nodes when at certain zoom levels. These levels are -1, -7, or -10 respectively. ...

The Add node does not update in the Construction Script

UE - Gameplay - Blueprint - Feb 28, 2015

The Add node does not update in the Construction Script. Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917) ...

BP - Array Get node can result in BP compiler note on load with reference types.

UE - Gameplay - Blueprint - Apr 10, 2017

This is similar to [Link Removed], only in this case, the "Array Get" node is implemented as a UK2Node_GetArrayItem and not a UK2Node_CallArrayFunction. The fix for [Link Removed] currently applies ...

CreateWidget node keeps reference to created widget on output pin

UE - Gameplay - Blueprint - Oct 17, 2017

There was an issue in 4.16 (fixed in CL# 3437205) in which blueprint output pins would hold on to object references until the blueprint was destroyed. It appears that an additional fix may need to b ...

[Feature Request] Niagara Ribbon Render needs V direction Tessellation option

UE - Niagara - Aug 8, 2021

It has a common chunking visual artifacts that lot's of triangular Translucent overlap once Ribbon's width is big and twisted heavily facing to Camera [Image Removed] It can be fixed by adding mor ...

AISystem::RegisterBlackboardComponent being called not in all valid cases

UE - AI - Feb 6, 2015

Observed by 4.7 preview 5 user. After closed investigation it turned out he had two consequent AIController::UseBlackboard calls, which triggered a ensure failure in AISystem::UnregisterBlackboardCo ...

Component default data can be lost for a non-nativized Blueprint class that inherits the component from a nativized parent Blueprint class.

UE - Gameplay - Blueprint - Sep 5, 2018

This is a regression that was introduced by the fix for [Link Removed]. The fix makes an invalid assumption that instances of components whose archetypes are inherited by a non-nativized child Blue ...

Project launch options flicker between available and unauthorized/locked

Tools - Aug 20, 2018

Project launch options flicker between available and unauthorized/locked Unsure what causes this, but I have hit the issue twice. Another person has also seen this on their machine. I was able to ...