Array inputs on event dispatcher cause a compiler note.

UE - Gameplay - Blueprint - Apr 13, 2017

Looks related to [Link Removed], but it appears that something was overlooked. Probably requires a similar fix for the delegate node. ...

Undo rename of Anim Curve in Curves section below viewport causes all curves to disappear

OLD - Anim - Jun 12, 2017

The anim curves in the Curves section below the viewport disappear when undoing the renaming of one. This does not occur in 4.16.2 ...

[CrashReport] Linux crash - FStatsThreadState::ProcessNonFrameStats

UE - Platform - Linux - Sep 21, 2017

This is a somewhat common Linux crash that has occurred since 4.16. The callstack shares some similarities to [Link Removed] ...

When the Transform of InstancedStaticMesh is updated, the Random Seed value of PerInstanceRandom is updated.

UE - Graphics Features - Oct 18, 2017

When updating Transform of InstancedStaticMesh by UpdateInstanceTransform, PerInstanceRandom used in Material is updated. With 4.16 does not update the RandomSeed value. ...

I get a compile error when using Particle SubUV nodes and tessellation.

UE - Niagara - Oct 6, 2021

I think tessellation will be discontinued in the future, but I will report it just in case. The licensee is not keen on fixing this problem. ...

Crash when getting input action value from a component

UE - Gameplay - Input - Nov 30, 2022

NOTE: I have been unable to repro this locally, but the crash is because of a null de-reference so we can at least add that to fix up the issue for them.  ...

Parameters end up associated with the wrong layer after certain material layer swaps

UE - Rendering Architecture - Materials - Mar 6, 2023

The licensee has also provided an explanation as to why this issue occurs + guidance for a potential fix. Please see the UDN for more details. ...

Crash upon launching packaged game with nativized blueprints that include Add Child Actor Component node with a class already set

UE - Gameplay - Blueprint - Jun 14, 2017

When using the Add Child Actor Component node with a class set on the node with Blueprint Nativization enabled, the packaged game crashes upon launch. A workaround for this is to leave the class bla ...

ES2 Fallback Fails on Nougat Devices that do not support Vulkan

UE - Platform - Mobile - Aug 28, 2016

Discovered this while doing RC candidate testing for 4.13 Works fine in all other use cases: Nougat devices that support Vulkan Marshmallow devices that support Vulkan Marshmallow devices that don' ...

Game does not exit when exited through SteamVR UI

UE - Platform - XR - Oct 13, 2016

Previously the game would crash (see: [Link Removed]), but the fix now keeps the game running without VR instead. ...