FPropertyEditorInlineClassFilter confusing (and wrong) IsA semantics

Tools - Mar 20, 2017

FPropertyEditorInlineClassFilter IsUnloadedClassAllowed and IsClassAllowed use the confusing IsA semantics. In the IsUnloadedClassAllowed, the usage seems wrong completely. It seems like the real i ...

Clearing text property from a Text widget won't work the first time

UE - Editor - UI Systems - Mar 21, 2017

It currently takes two attempts to clear the default text from a Text Block widget. The first time you try, the property will repopulate with the previous string. ...

Crash While Loading UTexture Data Inside PostLoad During Open Level

UE - Graphics Features - Mar 22, 2017

(User provided info) Crash (check fail critical error) if you try to load a UTexture's data (eg UpdateResource() or PlatformData .. Mip .. Lock/GetCopy) inside a PostLoad of anything during an Open ...

Spectator Pawn cannot be added to level by dragging into viewport

Tools - Mar 23, 2017

Spectator Pawn cannot be added to level by dragging into viewport but can be added by using place actor in the level viewport. Regression: This issue occurs in 4.13.2, 4.14.3, and 4.15.1 of the Bin ...

Per-section shadow/collision flags lost when merging actors

OLD - Anim - Mar 24, 2017

Information loss when merging actors such as cast shadow and collision. If one of the actors being merged has a different setting such as not casting shadows. This information will be lost and repla ...

Renaming BP Components will break links to sequencer tracks

UE - Anim - Sequencer - Mar 24, 2017

Some modifications to BP Components will break links to sequencer tracks ...

Opening / Compiling class with ChildActorComponent causes the ChildActor package to be marked dirty.

UE - Gameplay - Components - Mar 24, 2017

Looks like this is a problem where the Actor is Duplicated due to constructions scripts running. Later, when the duplicate is destroyed all of its components will call RemoveOwnedComponent as they'r ...

The WITH_EDITORONLY_DATA preprocessor definition is not included in the list of definitions for a project

UE - Foundation - Core - Mar 28, 2017

The WITH_EDITORONLY_DATA preprocessor definition is not included in the list of definitions for a new project, or the UE4 solution. ...

Mesh vanishes on BP compile (components created by components issue)

UE - Gameplay - Blueprint - Mar 29, 2017

When a mesh is declared in a custom component class and that component is added to an actor class, compiling a blueprint based on the actor class will cause the mesh set in the component to vanish i ...

High GPU Memory Consumption when Moving an actor that contains a SceneCapture2D

UE - Graphics Features - Mar 29, 2017

When using a SceneCapture2D within blueprints (as a component or actor blueprint) and moving the blueprint around while placed in the world (Capture Every Frame and Capture on Move enabled). The mem ...