Unreal Engine Issues

The MainMenu widget isn't loaded when the player returns to the MainMenu map from the InGame menu in Multiplayer Shootout

The MainMenu widget isn't loaded when the player returns to the MainMenu map from the InGame menu in Multiplayer Shootout. This happens in PIE and in a packaged project. Reproduced in 4.8.0 and Mai ...

Performance Drop Occurring During PIE When Blueprint is Open

Having a blueprint open during PIE causes a significant drop in performance. Having multiple blueprints open can almost render more complicated projects unplayable. The user has reported 120 fps wi ...

Detail Panel Favorites cause many settings to be duplicated or shown when they aren't normally

Enabling the "Enable Details Panel Favorites" experimental setting causes some details that were not previously shown to appear. In version 4.18 and onward, it also causes these new details to have ...

IOS deviceCrash when input Korean Charactor on EditableTextBox

UMG Crashes When Using "Create Dynamic Material Instance" With An Optional Name Twice

When using an Optional Name parameter in Create Dynamic Material Instance while using the same Optional Name twice in UMG the engine crashes. I have tested this in a actor blueprint that applies th ...

Editor Periodically Has Performance Drops In Basic Scenes

The Editor experiences performance drops even in the default basic level when left alone running. I experienced them every ~3 seconds. My graph didn't show the drops very clearly so the fps counter ...

Crash in UHierarchicalInstancedStaticMeshComponent::GetOverlappingSphereCount

A licensee has reported a regression from 4.18.3 to 4.19.2 that is causing crashes to occur in their project. The crash occurs when walking onto their foliage in a packaged game. This does not happe ...

Skylights not Updating in Blueprint Viewport

When modifying the properties of a Skylight actor as a component within Blueprints, the changes are not reflected in the Blueprint viewport. If you drag the blueprint into an empty scene and modify ...

Changing the “show mouse cursor” variable of PlayerController with a mouse button input does not work the same as with a keyboard input

Using the mouse input to show the mouse cursor acts like an Alt+Tab. When clicking the mouse input again to no longer show the cursor, the camera controls stop at the edge of the screen. Reported i ...

FBX Scene Importer sets actors in Blueprint to movable when reimporting

When using the FBX Scene Import into Level with default settings so that the actors in the BP import as static, if you reimport them they will then be set to Movable in the BP. This is not a regre ...