The Ease function's Blend Exp reverts to its default value after closing/reopening the editor

UE - Gameplay - Blueprint - Jan 20, 2015

The Ease function's Blend Exp reverts to its default value after closing/reopening the editor. Reproduced in 4.6.1 binary and in Main (CL-2408355). ...

Creating custom event from function w/ delegate variable parameter does not have input pin for the delegate

UE - Gameplay - Blueprint - May 29, 2015

When using a delegate variable as a function parameter, dragging off of the delegate pin of an associated function BP node to create a custom event will create a default custom event without the inp ...

Light leaks when cast shadow disabled light is applied to the Hair material.

UE - Graphics Features - Shadows - Feb 27, 2023

There seems to be a leak in the ContactShadow determination in DeferredLightingCommon.ush ShadowRayCast(), but I could not determine if this is the specification. This problem always occurs from 4. ...

Geometry Material Alignment not functioning in 4.8

Tools - Jun 15, 2015

Material Alignment on BSPs are not functioning in 4.8.0 Release. This is a regression from 4.7.6. The issue does appear to be fixed and functional in 4.9 (Promotable-CL-2581018) ...

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash

UE - Gameplay - Blueprint - Jun 28, 2015

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...

Blueprint Functions Aren't Listed in the Profiler Tool

UE - Foundation - Core - Sep 19, 2019

Blueprint functions aren't showing up in the Profiler Tool. Found in 4.23.0 CL#8386587 Reproduced in 4.24.0 Main CL#8781358 ...

Crash when removing Blueprint function

UE - Gameplay - Blueprint Compiler - Apr 23, 2018

The Editor crashes whenever the reference to the "DeleteThisFunction" function is deleted. ...

Self Reference allowed as input for function with pass by reference on creation, which will crash when executed

UE - Gameplay - Blueprint - May 22, 2017

There is an issue when using self references with functions as an input. With pass by references on a function, the input has it checked by default; however, a self reference can still be hooked in ...

Certain levels have little lighting in ContentExamples on Mac

UE - Graphics Features - May 4, 2017

Certain levels have really dim lighting in ContentExamples on Mac. This does not occur in //UE4/Release-4.15 on CL 3416026. Maps tested so far where the issue is noticeable: Navmesh UMG ParallaxOc ...

Crash when unloading Lighting Scenario Streaming Level

UE - Graphics Features - Nov 16, 2016

If a sub-level is set as a Lighting Scenario in the Levels tab, calling Unload Stream Level will cause standalone / packaged games to crash. Regression: No - Lighting Scenario not available before ...