Array inputs in Custom Events cause a compiler "note"

UE - Gameplay - Blueprint - Sep 1, 2015

Array inputs in Custom Events cause a compiler "note". On compile, "NOTE" is added to the node, and this appears in the Compiler Results: "Info No value will be returned by reference. Parameter 'Lis ...

Incorrect shading for SubSurface profile in the Blueprint Viewport.

UE - Graphics Features - Dec 30, 2016

The Subsurface shading looks incorrect in the Blueprint Viewport window. Adjusting the cvar for r.sss.checkerboard from the default value of 2 to 1 looks more correct and a value of 0 switches back ...

World-locked stereo layers for SteamVR are not positioned correctly

UE - Platform - XR - Nov 14, 2017

World-locked stereo layers don't seem to be in the correct place when viewed in SteamVR. In 4.16, if you Subtracted the difference of VR origin location and world origin location and offset the pos ...

Crash when importing material assigned to FBX with illegal characters through the Full Scene Importer

UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016

If you have an illegal character (/ or ?) in your material name embedded with your FBX the editor will crash when using the new Full scene importer and selecting the Materials Tab. Tested in and ...

Applying Reverb does not work in Audio Volume

UE - Audio - Oct 29, 2019

In current and future versions of the engine, the reverb does not work as intended in the Audio Volume Tested in 4.22.3 (CL - 7043647), 4.23.1 (CL - 9631420), 4.24 (CL - 9846303), 4.25 (CL - 98464 ...

Preview Scene - Lighting Rig Rotation rotates Environment Map and Directional Light in opposite directions

UE - Graphics Features - Aug 25, 2020

When previewing an object, manually changing the rotation using the Lighting Rig Rotation rotates Environment Map and Directional Light in opposite directions. This bug makes it difficult to do look ...

Oculus Touch Menu Button Input Not Received When Set In Action Mapping

UE - Platform - XR - Mar 9, 2020

The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...

[CrashReport] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:359]

Tools - Aug 31, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: !bIsReentrant [L ...

Hidden In Game option for Layers in TileMap Editor not working

UE - Gameplay - Paper2D - Oct 26, 2015

Using the 'Hidden in Game' option in the Tilemap Editor does not hide the associated layers in game as expected. I tested this issue in 4.8.3, 4.9.2, and 4.10 Preview 2 binary releases and the issu ...

Tessellation no longer working

UE - Graphics Features - Jan 12, 2016

Material Tessellation is no longer working in 4.11 Preview 2, 3, or 4. It is also no currently working in 4.12 Main. Working: 4.10.2 - CL-2818068 Not Working: Tested in Dev-Release CL-2824708 Not ...