Unreal Engine Issues

Camera Movement is laggy while the mouse button is held down and ShowMouseCursor is enabled if there are AI moving

Camera Movement is laggy while the mouse button is held down and ShowMouseCursor is enabled if there are AI moving. Stat Scene Rendering didn't show any jumps while moving the camera under these cir ...

Packaged Project with Media Player Asset 'From Memory' Crashes and Corrupts Project

There is no Callstack associated with this crash. And I was unable to reproduce this in main due to a known issue when switching the 'Stream Mode' to 'From Memory'. When packaging a project in 4.6. ...

.ini files for packaged games have their settings wiped clean every time the game is run.

The settings .ini files for games packaged for windows appear to be getting overwritten with blank files whenever the game is run. Even if settings are added to the .ini files manually, the files be ...

Circularly referenced blueprints cause stack overflow in a package game without IOStore

Creating a function with parameter type TEnumAsByte<MyEnum> will crash while compiling

This is a regression.This does not affect UE5. Creating a function with parameter type TEnumAsByte<MyEnum> will crash while compiling. In 4.26 and UE5 the code compiles without issue, and the user ...

FSlateApplication::OnControllerAnalog triggers a MouseLeftClick event to be added to the input stack.

It appears that FSlateApplication::OnControllerAnalog triggers a left mouse click to occur on mobile platforms. If developers haven't properly avoided hooking up delegates to the InputComponent for ...

Blueprint Cannot Give Niagara CPU Access To Skeletal Meshes Added From Blueprint

When a user tries to add a skeletal mesh component to a blueprint with a niagara system to use the skeletal mesh with that niagara system, the niagara system will stop rendering because it does not ...

Ribbon Particle Normals are reversed from default Sprite Particles

It appears that the Vertex Normals from Ribbon Particles are opposite of what is expected via the Default Particle System given both systems share the same alignment (Facing Camera) [Image Removed] ...

Input Action Mapping Rebinding not working properly if pawn extends from Pawn.h

Rebinding an action mapping doesn't seem to take effect immediately if the Pawn class used has Pawn.h as its parent class. However this'll take effect immediately with DefaultPawn.h. In addition, th ...

Non-Struct CDO component properties display incorrectly in the property editor.

UObjectProperty properties within a UActorComponent class aren't exposed for editing in the Details panel when choosing to edit native component defaults in the BP editor. ...