Body Instance property changes made in construction scripts are not applied

UE - Simulation - Core - Jul 17, 2020

7054614 was submitted to fix an issue with not being able to modify physics properties on instanced blueprints child components. This is related to [Link Removed]. This change causes BodyInstance t ...

Linker Instancing Context duplication results in OOM

UE - World Creation - Worldbuilding Tools - OFPA - Aug 16, 2024

In order to fix a major issue involving dissapearing actors during cook, we added instancing context duplication in 31925640. This actually undoes the optimization made from 26543720 Both reported ...

Dragging more than one Texture into the Material Editor causes a crash

UE - Graphics Features - Mar 11, 2020

Importing two or more Textures into the Material Editor results in a crash. This is a regression from 4.24.3 (CL-11590370) as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) and ...

Ensure opening TM-ShaderModels in DirectX10

UE - Graphics Features - Jul 11, 2017

Ensure occurs opening TM-ShaderModels in DirectX10. This does not occur in 4.16.2 ...

Crash when calling SetVector2DParameter on a Niagara Parameter Collection

UE - Niagara - Mar 10, 2022

Crash when calling SetVector2DParameter on a Niagara Parameter Collection. The value for the SetVector2DParameter may or may not have to be changed in order for the crash to occur.  Assertion faile ...

CharacterMovementComponent::ApplyRepulsionForce uses the BodyIndex incorrectly as a bone index

UE - Simulation - Physics - Oct 5, 2015

The code to extract the FBodyInstance from the overlapping component is incorrectly interpreting the Overlap.BodyIndex as a BoneIndex. This results in incorrect bodies getting the force applied, as ...

Non-overridden BP update for Animation Blueprints not Calling Parent Function.

OLD - Anim - Mar 21, 2016

User in the linked UDN reports that the parent BP update was not being called in an animation blueprint unless they hooked up the parent call. By default this call is greyed out in the graph and sh ...

Code based BT task breaks after closing/reopening the editor

UE - AI - Sep 9, 2015

A behavior tree task created in code will break in the editor behavior tree. The BTTask node shows as red and says that the class cannot be found. Node must be deleted and replaced to fix the erro ...

Able to see cut off landscape in SunTemple in VR

Docs - Samples - Jan 20, 2017

When using the Oculus Rift the user can look over one of the balcony's railings and see where one of the landscapes cuts off. This occurs on the Oculus headset. UE-40907 causes the Vive to clip th ...

Compile 'Note' on BP Interface events

UE - Gameplay - Feb 23, 2017

Compile 'Note' on BP Interface events. It happens in actor BPs and also BP Widgets. A similar issue was fixed back in 4.11 with Custom Events. Could be related? https://jira.it.epicgames.net/brows ...