Unreal Engine Issues

Editing parent emitters with mesh renderer in a niagara system causes crash

After editing the parent emitters of a Niagara system with mesh renderer particles the engine will crash the next time the editor and system are opened.  This was tested with both engine content cub ...

When the camera is set as a child actor and the Look at of the camera is set to the parent, the transformation keeps changing.

"Primitives with unbuilt interactions" not clearing after lighting scene rebuild

Regression No, according to affect version 4.26 and 4.27 [2021.10.29-17.01.06:085][830]Primitives with unbuilt interactions: 6[2021.10.29-17.01.06:085][830] Primitive FoliageInstancedStaticMeshComp ...

Crash when using AnimBudgetAllocator

In the AnimNode_Slot code, It seems that update() and evaluate() should be called by following order because in TickAnimation step, we need to make MontageEvaluateData valid.SkeletalMeshComponent::U ...

Audio Capture Component Crash on Android

Android is experiencing a delayed crash after an Audio Capture Component is destroyed. This appears to be a potential problem with the way Android's implementation of Audio Capture Component closes ...

Packaging failed after create EditorUtilityBlueprint asset inherited EditorTutorial class

Whenever creating the EditorUtilityWidget asset with EditorTutorial as the parent class, the packaging will fail. If the tutorial is not launched the package will succeed. But launched, it will fail ...

[AI] GameplayDebugger can be enabled by key press when a Slate widget is focused.

Found by licensee. After debugging, it appears that the Slate input is consuming the KeyDown event which adds the apostrophe, but it passes the KeyUp event back to Player input. The gameplay debugge ...

Marketplace plugins "missing precompiled manifest" on Mac

Summary This issue was reported by a licensee via UDN. It appears that all of the plugins generate a "missing precompiled manifest" error when packaging a project on Mac in UE4.26.2.Licensee Platfor ...

The get data table row function is not exposed to python

I would like to be able to do the following blueprint code in python. [Image Removed] The getDataTableRow function is not exposed to python.  Engine\Source\Editor\BlueprintGraph\Private\K2Node_ ...

Planar Reflection Inverted surface

Also worth noting the editor slowed significantly with the planar reflection in the scene. Regression checked in //UE4/Release-4.26.2 CL15973114 and the issue does not reproduce there ...