BulkDataManifest asset is non-deterministic

UE - Foundation - Core - Cooker - Jan 11, 2022

FPackageStoreBulkDataManifest:: Data ** is not sorted. It generates a difference, Here's a workaround void FPackageStoreBulkDataManifest::Save() { TUniquePtr<FArchive> BinArchive(IFileManager:: ...

Key input by Sequencer is missing in FBX output of parent-child actors

UE - Anim - Sequencer - Nov 15, 2021

This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A)   ┗Actor(B)     ┗Actor(C) This is how the attachments are registered, and the ke ...

No sound plays when using Oculus Spatialization Plugin

UE - Audio - Spatialization - Nov 10, 2021

The Oculus spatialization option is not producing sounds. In Test Rail I can see that the test related to this passed April 2021 in UE4. In UE5 it passed on Early Access in February 2021. ...

No sound plays when using Built-In Spatialization or Simple ITD plugins

UE - Audio - Spatialization - Nov 10, 2021

No audio can be heard when using the Built-In Spatialization plugin. This is a regression from 4.26. Occurs in 4.27 and 5.0. ...

Crash when adding Rectangle Lights to a game with multiple players while Raytracing is enabled

UE - Rendering - Nov 9, 2021

A user reported this issue to us through Salesforce. They initially said it crashed with both Spot Lights and Rectangle Lights, but I was only able to repro with Rectangle lights. Additionally, I di ...

Sequencer frame range progression is not continuous

UE - Anim - Sequencer - Oct 28, 2021

The end of the level visibility section places a DeterminismFence. This causes the issue. The fence clips the frame range and produces a discontinuous frame ranges, e.g. 23201~24000, then 24001~24 ...

Set Texture Object on Niagara Components no longer works for render targets.

UE - Rendering - Niagara - Oct 27, 2021

When adding support for cube texture ([Link Removed]) there was no check added for render targets, making them invalid for Set Texture Object, when they were previously supported. ...

OSS Steam: SteamSocket listen connections do not work after poll group changes

Online - OSS - Steam - Oct 25, 2021

In 4.27 the logic in SteamSocket.cpp which is part of the SteamSockets plugin was changed to use Poll Groups instead of a removed API function that checked all children of a listen socket. However,  ...

Unable to set Mesh Renderer Info source renderer

UE - Rendering - Niagara - Oct 22, 2021

Unable to set Mesh Renderer Info source renderer ...

DOF aliasing on Niagara particles

UE - Rendering - Oct 18, 2021