Cannot Increment an Element of an Array

UE - Gameplay - Blueprint - Apr 15, 2016

Attempting to increment the value of an array element does not seem to work, and instead returns the original value that was passed into the increment int node. Found in 4.11.1 binary. Reproduced i ...

When encrypt assets and packaging ,crash at game startup

UE - Foundation - Core - Sep 11, 2017

When ShooterGame project is packed from RunUAT.bat, if you give encryption option, crash occurs at game startup. Without granting the encryption option crash does not occur. This occur. This problem ...

Using Custom Primitive Data as Final Colour in a UI Material crashes the engine with a missing uniform buffer

UE - Rendering Architecture - Materials - Jul 3, 2024

Using custom primitive data as an input in a UI material causes the engine to crash in the RHI thread. The exact crash is "Missing uniform buffer at slot 1, stage SF_Pixel." at Engine\Source\Runtime ...

UV merging issue when merging meshes with multiple materials

UE - LD & Modeling - Modeling Tools - Mesh Editing - Jul 15, 2019

See https://udn.unrealengine.com/questions/505632/view.html for more details Repro: -Have a mesh with 3 sections and 3 materials, assign section 1 to material 1 and section 2&3 to material 3. -Pla ...

Content Browser is not opened when clicking Browse to Asset from a docked to sidebar Details or WorldSettings window

UE - Editor - Workflow Systems - Apr 15, 2022

Repro Ratio: 6/6 Regression testing in //UE5/Release-5.0-EarlyAccess CL-16682836 since this feature wasn't in UE4. This issue did NOT happen. This issue only seems to happen when the windows are ...

Dialog Subtitles randomly Disappear or Display out of Sync

UE - Audio - Sep 8, 2016

Dialog Subtitles display out of order or disappear when called to the screen. The users reporting the issue believe this could be due to the priority of the Sound Waves conflicting with one another ...

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 ...

Marketplace plugins "missing precompiled manifest" on Mac

UE - Platform - Apple - Oct 12, 2021

Summary This issue was reported by a licensee via UDN. It appears that all of the plugins generate a "missing precompiled manifest" error when packaging a project on Mac in UE4.26.2.Licensee Platfor ...

[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 ...

Exposure Metering Mode "Auto Exposure Basic" Disables Histogram Min/Max Control

UE - Graphics Features - Oct 11, 2018

Auto Exposure Basic disables histogram min/max controls. Working as expected in 4.19 CL# 4033788 and 4.20 CL# 4369336 Found in 4.21 Preview 1 CL# 4435822 and 4.22 CL# 4448303 This is a regression ...