"Create Layers From Assigned Materials" assigns existing LayerInfos at random

UE - Graphics Tools - Terrain - Landscape - Jan 17, 2025

The automatic landscape layer assignment that is performed when using "Create Layers From Assigned Materials" just uses the first layer info it finds with the layer's name, which leads to maps refer ...

Some Niagara FX does not show up in MovieSceneCapture when AgeUpdateMode is DesiredAgeNoSeek

UE - Niagara - Cinematics - Sep 17, 2024

CL23957356 changes how to calculate FrameOffset in FNiagaraSystemUpdateDesiredAgeExecutionToken::Execute(). After this change, DesiredAge + FrameOffset could be 0.0 for some a couple of initial fram ...

Crash when updating instanced subobjects in a USTRUCT

UE - Gameplay - Blueprint - Jul 5, 2017

Attempting to edit array of instanced subobjects causes the editor to crash. ...

No visual updates when adjusting the curve editor in UMG for the first two points on the timeline

UE - Editor - UI Systems - Jul 6, 2015

When Switching the curve editor to cubic interpolations for example moving the blue handles will not change the curve. However, if a third point is add this function works as intended from the 2 poi ...

OnDragDetected fires off with a single click for 3D widgets

UE - Editor - UI Systems - May 11, 2015

When Using the On Drag Detected on a 3D widget, the drag function fires off on a single click (No dragging necessary) ...

Calling SetNavigationRule for widgets at runtime does not update the Nav Rule

UE - Editor - UI Systems - Sep 25, 2017

Calling SetNavigationRule at runtime does not update the widget navigation of the selected widget. Regression: No - same behavior occurs in 4.16.3 (CL 3561208) ...

Nativized widget with String table data crashes packaged game

UE - Gameplay - Blueprint - Jun 1, 2017

There is a crash that is occurring for packaged games that use the string tables and nativized blueprints. This issue only affects a packaged build of the game. Testing for this issue did not yield ...

Creating a float variable named lifespan in an Actor Blueprint and setting its default value will override the life span of the parent class

UE - Gameplay - Blueprint - Dec 19, 2016

Creating a float variable named lifespan in an Actor Blueprint and setting a default value for it will override the parent class' life span setting. I was unable to find any variable in the Actor cl ...

TakeRecorder cannot record Auto Activate and Destroy of Niagara effect

UE - Niagara - Apr 1, 2024

When Niagara FX of a recording actor is spawned during taking a record, that FX behavior must be recorded and able to be playbacked. However, Niagara Component Auto Activation by BP node is not reco ...

Access Violation in delegatesignatureimpl.inl after HotReload

UE - Foundation - Core - Jan 27, 2017

This is the third different callstack in an attempt to repro a HotReload crash I am experiencing. The other two are:[Link Removed]: Nullptr Ensure and crash after HotReloading[Link Removed]: Assert ...