Sprite sheets cannot be reimported in 4.8 in a project that was converted from an older version

UE - Gameplay - Paper2D - Jun 11, 2015

User bug report: Why do you guys remove the Json Importer from UE 4.8? All atlases from TexturePacker can not be imported anymore on our projects. Is there a way to activate it? or maybe is there a ...

Vertex Color Information Lost on Editor Restart

Tools - Apr 19, 2018

This is a regression. In 4.19 and Main (CL 4008322), vertex color information does not save properly and data is lost when editor is reopened. Creating project from scratch instead of copying over f ...

Some textures stretched on Mobile device

UE - Platform - Mobile - Sep 8, 2015

User's content is here: "P:\temp\UrbanJogging.zip" "If you start up the game or go into the content, the issue is on Track One, on the first bend on the right. Also be careful with the sprint bu ...

Water Brush incorrectly captures rivers with non-square landscape resolution

UE - Graphics Tools - Terrain - Landscape - Aug 8, 2024

The adding of terrain tiles eventually results in a reallocation of the landscape and something becomes de-synchronized between the water system and the landscape system resulting in the deformation ...

Property "GameFeatureData.PrimaryAssetTypesToScan.Directories" should be tagged with "ForceShowPluginContent"

UE - Foundation - Oct 11, 2025

When using a Game Feature Plugin, one of the settings available in the "GameFeatureData" DataAsset (class UGameFeatureData) is "PrimaryAssetTypesToScan", which is an array of FPrimaryAssetTypeInfo s ...

Horde server fails to build Docker image

UE - Foundation - Horde - Server - Apr 1, 2025

If you attempt to build the Horde server Docker image right now it fails unless you have some of the layers cached or a nuget proxy/cache that has cached some packages. JetBrains have renamed their ...

[CrashReport] UE4Editor_UnrealEd!UTransBuffer::Cancel() [editortransaction.cpp:697]

Tools - Nov 17, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 833] ...

Widgets appear to be offset when launching on to Chrome or other HTML platform

UE - Platform - Mobile - Nov 9, 2016

Widgets appear to be offset when launching on to Chrome or other HTML platform. The widget appears to be offset and unclickable until the window for the browser is resized. ...

ShooterGame references images in slate from a folder that does not exist

Docs - Samples - Jul 8, 2015

A user has found that there are a few lines of code inside of shooter game that references a folder that does not exist. The lines of code below are the lines of code that reference images in an ima ...

Crash On Hot Reload with Custom World Settings and HISM Class

UE - Gameplay - Blueprint - Sep 8, 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: IsValid() [Link ...