Crash When Building HLODs

UE - World Creation - Worldbuilding Tools - HLOD - Aug 21, 2019

Building HLODs causes a crash. This only seems to occur in some levels as shown in the attached project. Found in 4.22 CL# 7053642, 4.23 CL# 7948402, 4.24 CL# 8124506 ...

Crash when setting Anim to "None" with URO

OLD - Anim - Aug 28, 2019

A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...

CAD Geometry translation error

UE - Editor - Content Pipeline - Datasmith - Importer - Sep 6, 2019

Importing the CAD file into Datasmith causes huge surfaces to appear on the model that do not appear in the CAD software. This was reported and tested in 4.22 (4.22E2). This was reproduced in 4.23 ...

Viewport breaks with Forward Shading, MSAA and Accurate Velocities from Vertex Deformation Enabled

UE - Graphics Features - Sep 13, 2019

With Forward Shading, MSAA and Accurate Velocities from Vertex Deformation enabled  the viewport breaks. If any of these settings are different, the viewport is fine again. Found in 4.23 CL# 838658 ...

Dynamic navmesh update causes navlinks to reset to their default state

UE - AI - Dec 16, 2019

Updates to dynamic navmesh cause navlinks to reset to their default state. Navigation still shows the path as accessible even though it isn't. This is a regression from 4.23.1 (CL-9631420) where th ...

Niagara Map Set parameters are improperly named

UE - Niagara - Mar 9, 2020

Parameters are misnamed when adding a new parameter to Map Set in a Niagara Module Script  Tested: 4.23.1, 4.24.3 , 4.25 preview, 4.26 (main) ...

Screen Space Reflections not showing in Panoramic Capture

UE - Graphics Features - Sep 10, 2020

Reflections not showing in Panoramic Capture images. Reported and tested in versions 4.25.3(CL 13942748), 4.24.3(CL 11590370), and 4.23.1(CL 9631420).  ...

Materials with transparency still visible in alpha with holdout in Render layers.

TM - Tools - Mar 8, 2024

The Transparent materials like the Glass don't behave correctly in Raster (in PT is working as expected).  They are visible in Alpha with Holdout.  This is an Engine limitation for now. But we sho ...

Crash on PIE exit after dynamically enabling and disabling tick functions through the Level Script blueprint.

UE - Gameplay - Mar 23, 2018

User reports hitting an assertion due to invalid FTickTaskManager state when game is attempting to unregister a tick function that was previously disabled dynamically. Failed assertion is in FTickT ...

Update Oculus Audio SDK

UE - Platform - XR - May 19, 2016

The current version of the oculus audio SDK fails to initialize for some clients. We haven't been able to reproduce the problem internally but we're told from Oculus that updating the SDK will fix t ...