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 ...

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 ...

UE5 Main - Editor crashes when creating a Data Table

UE - Editor - Feb 14, 2022

Doesn't occur in UE5 Release or UE4.Can't attach logs/crash information I'm encountering an RHI crash within UE5 Main at the moment. This issue seems to be caused by a commit from last year that ...

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 ...

Dynamic Parameters do not function in Beam Emitters

UE - Graphics Features - Apr 10, 2015

Transfered Issue from TTP # 298314, originally opened in TTP on 6/3/2013 and updated with Answerhub post information on 5/18/2014 Dynamic Parameters cannot be used with a Beam Emitter, they pass no ...

Exiting VR Edit mode from simulating causes viewport mismatch

UE - Editor - Workflow Systems - Mar 5, 2016

9/19 VREditor sync notes: Should grey out the editor button while you're simulating ----------------------------------------- I noticed you can fix this issue by reseting the viewport by pressing t ...

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 ...