Different instanced materials are seen as the same material due to GUID

UE - Graphics Features - Jun 3, 2021

See licensee description of the issue: The problem appears when I have two instanced materials with the same number of parameters. I've noticed that ShaderMapId has MaterialLayersParameterIDs where ...

[VR] Camera attached to non-root scene component in BP will sink into floor after Reset to Floor Origin

UE - Platform - XR - Aug 12, 2016

When a project is first created following the Setting up UE4 to work with SteamVR docs, the Vive camera works correctly and will display at the correct height. However, if at any point during develo ...

Command r.DebugSafeZone.Mode 0 does not disable overlays

Tools - Feb 19, 2020

Running the console command r.DebugSafeZone.Mode 0 does not disable all overlays.  The issue occurs when setting custom values in DefaultEngine.ini as well.  Tested using the following settings:  ...

[MetaSounds] - If the audio output hits an extreme Gain value, the Audio Meter Widget stops responding

UE - Audio - MetaSounds - May 20, 2022

It's possible to have the Audio Meter widget stop responding if you set the Gain really high. It will cease to work as long as the MetaSound window is open. Closing and reopening the MetaSound windo ...

Changing the value of a text struct variable inside a duplicated function that contains a Make Struct node will reset that value in the original function

UE - Gameplay - Blueprint - Mar 11, 2015

Changing the value of a text struct variable inside a duplicated function that contains a Make Struct node will reset that value in the original function. This does not appear to occur with other va ...

Changing Effects Quality with Console Command Resets Audio Playback of Packaged Game

UE - Graphics Features - Feb 26, 2015

When packaging a product for Windows (64) with an 'Event Begin Play' node executing a UI sound to play, and changing the Effects Quality within the console, restarts the audio playback for that soun ...

The AND node always calculates all inputs

UE - Gameplay - Blueprint - Nov 5, 2015

The AND node always calculates all inputs, even if the first input fails as False. Probably related to [Link Removed] (currently unresolved, but a Select node-specific fix is mentioned in the comme ...

Attempting to Duplicate an Asset Copied to a New Folder Spawns the Original Asset

UE - Gameplay - Blueprint - Mar 8, 2016

Copying an asset into a new folder, placing an instance of the copy into the level, and then attempting to duplicate that copy by using CTRL+W in the viewport creates another instance of the origina ...

Crash on play if a BP uses a ClearInstances node followed by an AddInstance node

UE - Graphics Features - Jul 21, 2017

Crash on play if a BP manipulates a InstancedStaticMeshComponent by using a ClearInstances node followed by an AddInstance node. This is a blocker for the licensee. This is a regression: Working ...

ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor

UE - Networking - Mar 3, 2015

ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor. Reproduced in 4.7.1 binary and Main ( ...