Creating External Curve for a function's local struct variable causes editor to crash

UE - Gameplay - Blueprint - Sep 6, 2016

Defining a FRuntimeFloatCurve inside a code based struct causes the editor to crash if the struct is added as a local variable to a blueprint function and the "Create External Curve" button is press ...

Volumetric Light Fog Leak through objects

UE - Graphics Features - Dec 31, 2018

Any environment with volumetric fog enabled will have a light leak which appears through objects.  Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

Pasting a material graph breaks connection to any material function nodes.

UE - Rendering Architecture - Materials - Dec 4, 2019

Pasting a material graph breaks connection to any material function nodes. ...

Lighting on Paper 2D Tile Maps is Broken

UE - Graphics Features - May 8, 2018

In 4.18.3 this feature is working. In 4.19.2 the feature is broken. Per User: Half of the Lights Cone or Sphere will properly interact with the TileMap as intended, the other half will not for wha ...

The get data table row function is not exposed to python

UE - Editor - Workflow Systems - Oct 8, 2021

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_ ...

Material Function Warning: Only transparent or postprocess materials can read from scene depth.

UE - Rendering Architecture - Materials - Jul 14, 2015

In a material function, after adding a scene depth node and applying it to the Output Result node a warning pops up. This warning is Only transparent or postprocess materials can read from scene dep ...

UObject Macro Libraries cannot use functions that require a WorldContext

UE - Gameplay - Blueprint Editor - Jan 11, 2024

If you make a Blueprint Macro Library that derives from UObject you are then unable to use any functions that require a WorldContext, like Delay. This is because the WorldContext cannot be assumed l ...

ClientRPC function can be called prior to BeginPlay being called.

UE - Networking - Feb 11, 2016

When creating a new actor at run-time through code, it's possible for RPC function to be called before the new actor's BeginPlay is called. ...

Object references do not save for local variables within a function library when set as a default

UE - Gameplay - Blueprint - Jul 9, 2015

As an example, if a user sets a material variable's default within a function library it will not save. The Variable will be set back to "None" after hitting the compile button. ...

Nodes of inherited function don't refresh automatically in the opened BP editor if implemented interface is altered

UE - Gameplay - Blueprint Editor - Jul 14, 2020

Nodes of inherited function don't refresh automatically in the opened BP editor if implemented interface is changed.Workaround: refresh nodes manually Regression: NO Can be reproduced on the 4.25.1 ...