Unreal Engine Issues

Cannot access data table columns by property name in a nativized build if the table's row type is set to be a user-defined structure.

UDataTable::FindTableProperty() will currently fail in a nativized build because the RowStruct is no longer a UDS in that context; instead it is converted to a native UScriptStruct type. However, th ...

BSP Converted to Static Mesh with Multiple Materials Will Only Show Element 0 After Migrating and Changing LOD Settings

Launch URL node adds http:// to commands such as mailto:

LaunchURL places an http:// at the start of any URL that does not contain :// . This causes an issue with the mailto: command and other commands such as this. Regression?: No This occurs in 4.2 ...

Duplicating an Instanced UProperty Component copies a reference, instead of a "deep copy"

Duplicating a UActorComponent that has an Instanced UPROPERTY does not perform a deep copy of the instanced property. It appears to only copy a reference to the instanced object. Where as, performin ...

BumpOffset Node Produces Incorrect Results When Texture Coordinate Index Is Not 0

When using the BumpOffset node, it will produce incorrect resultsi if the Texture Coordinate Index is not 0. Found in 4.20 CL# 4369336. 4.21 CL# 4613538, 4.22 CL# 4751672 ...

Niagara System User Parameters Resetting After Closing the Editor

Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z.  Foun ...

Double-clicking a level asset in the content browser loads the level with EWorldType::Inactive

Fatal error importing via Datasmith (memory allocation)

Trying to import a large Revit asset using Datasmith causes the system to use all of it's memory. Certain systems may receive a memory allocation error in the process. ...

Renaming a folder that contains a read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync

Renaming a folder that contains a Read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync. This causes the original folder (which should still exist since the E ...

Ensure on open if custom Project Setting has a reference to a Blueprint that constructs an object

An ensure is thrown when opening a project if a custom Project Setting has a reference to a Blueprint that constructs an object. The ensure can be found in the Callstack section below. Regression?: ...