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 ...

Interface functions called as events in Blueprints that implement the interface cannot be set to replicate

UE - Gameplay - Blueprint - Jun 11, 2015

Interface functions called as events in Blueprints that implement the interface cannot be set to replicate. When the event node is clicked, the Details panel is empty. Reproduced in 4.7.6, 4.8, and ...

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 ...

Player input on the Client while Ejected during PIE will show on the Server (Editor) viewport and not on the Client window

Tools - Jul 17, 2015

Player input on the Client while Ejected during PIE will show on the Server (Editor) viewport and not on the Client window. Reproduced in 4.7.6 binary, 4.8.2 binary and Main (//depot/UE4/Promotable ...

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 ...

Xcode 8 Beta Toolchain Breaks InfiltratorDemo on AMD On 10.11.6

UE - Platform - Apple - Jul 27, 2016

InfiltratorDemo rendering is entirely broken on 10.11.6 using AMD GPUs when the shaders are compiled to byte code using the Xcode 8 Beta 2 toolchain. This does not appear to occur with the Xcode 7.3 ...

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 ...

Adjusting Agent Radius in RecastNavMesh causes AI to not move

UE - AI - Sep 9, 2015

Adjusting the RecatNavMesh in a map can cause the AI to not move when simulating or playing in viewport. Setting it back to the default value does not fix the issue. I can only reproduce this with ...

AttachToComponent replication snapping to position instead of keeping relative location

UE - Networking - Feb 15, 2019

When using AttachToComponent at runtime, the attachment does not replicate properly for some clients. The relative transform/rotation is not maintained. The user who reported this issue mentioned th ...