Partially loaded level instance becomes fully loaded after editing nested level instance

UE - World Creation - Worldbuilding Tools - Level Instances - Sep 10, 2024

Windowed game window can restore to the wrong size due to DPI Awareness is configured after setting initial window size

UE - Graphics Features - Jul 31, 2025

If in use, DPI Awareness is set after the initial window size is set. For a Windowed window, the settings are unable to restore the prior resolution settings on an application restart due to the pr ...

Nanite Mesh Dither Opacity Mask Not Working in 5.6.0

UE - Graphics Features - Nanite - Jul 30, 2025

In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...

Collision Boxes not set properly when using negative values

UE - Simulation - Physics - May 15, 2015

When using multiple collision boxes with the mesh scaled in a negative axis while the collision boxes are rotated that the rotation is not taken into account when using the negative scale. ...

Changes to code during a compile are not registered if compile is canceled/restarted

UE - Foundation - Cpp Tools - UnrealBuildTool - Jul 31, 2015

While the editor is compiling a hot reload, if project code is changed and the compile is canceled, code changes are not reflected upon next editor compile. ...

Hot Reload changes actor focus from a component to its root

Tools - Mar 10, 2015

When a hot reload occurs in the editor, if the component of a placed actor is selected then focus will switch from the component to the actor's root. This can be confusing when the root is a code c ...

Blueprints copied or moved to another level do not retain variable references to other Actors that are also copied or moved

UE - Gameplay - Blueprint - Apr 17, 2015

Blueprints copied or moved to another level do not retain variable references to other Actors that are also copied or moved. Reproduced in 4.7.5 binary and Main (//depot/UE4/Promotable-CL-2507843) ...

Deleting class instance will call destructor for each instance of the class

Tools - Mar 11, 2015

**UPDATE** When the actor is pulled from content browser to scene, a "ghost" object is created even if the actor is still being "held". Dragging the actor back and forth into the editor viewport wi ...