BlockingVolume is not working in Infinity Blade: Ice Lands once packed

Docs - Samples - May 11, 2016

BlockingVolume is not working once packaged while using the Frozen Core map from Infinity Blade: Ice Lands. BlockingVolume is working if you manually add it to Infinity Blade: Ice Lands. This has be ...

Mali offline compiler v6.4 has compiler error in Platform Stats of material editor.

UE - Platform - Mobile - Mar 28, 2019

if the build error is not reproduced, please open another material. Error from 4.21.2 version [Image Removed] Error from 4.22 preview 7 version [Image Removed] This is reproduced in Win10 Enter ...

Going to an earlier point of a replay does not update to previous visibility state on an actor that was switched to not visible during demorec

UE - Networking - Jan 5, 2016

Going to an earlier point of a replay does not update to previous visibility state on an actor that was switched to not visible during demorec. Reproduced in 4.9.2 binary and Main (//UE4/Dev-Main C ...

DestroySession Continuously Failing

UE - Networking - Nov 21, 2016

The DestroySession node fails each time it is called, and the session is never destroyed. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 3172292. Unable to test in 4.15 Main CL# 3205566 due ...

MemReport does not seem to respect mesh streaming

UE - Rendering Architecture - Aug 6, 2024

The function "FStaticMeshLODResources::GetResourceSizeEx(...)" does not take into account that the buffers might be emptied, due to Mesh Streaming. This causes "obj list" to report sizes larger than ...

Hidden Shadows Aren't Rendered When Raytracing Is Enabled

UE - Graphics Features - Lumen - Mar 13, 2020

Hidden shadows aren't rendered when ray tracing is enabled. Found in 4.25 Preview 2 CL#12055273 Reproduced in 4.23.1 CL#9631420, 4.24.3 CL#11590370, 4.26 Main CL#12123513 ...

Duplicated ChildActor on World Partition Streaming

UE - World Creation - Worldbuilding Tools - World Partition - Feb 5, 2024

The issue is encountered when streaming a world partition an actor with an AChildActorComponent which generates 2 instances instead of one when run as a client in the editor. This behavior does not ...

Callling "Get[AxisMapping]" or adding AxisMapping Event node in blueprint will break code input implementation for that axis mapping

UE - Gameplay - Input - Aug 17, 2016

When character input is defined in code, adding a call to the Get[AxisMapping] node in blueprints causes input for the specific mapping to fail. Note: This only affects code based input, Blueprint ...

"Failed to find object 'Class None'" in project log after creation

UE - Foundation - Core - Nov 17, 2014

Users reported seeing the line "LogUObjectGlobals:Warning: Failed to find object 'Class None.'" in the Output log after creating a project. I was able to confirm in a new blank code project without ...

Steam Sessions fails to create when using the Create Session node

Docs - Nov 30, 2021

This is a Regression. 4.26.2 - Binary - no issue creating a session. 4.27.1 - Binary - no issue creating a session if you convert a previously working 4.26.2 project. 4.27.1 - Binary - Fails to c ...