Calling a blueprint function library within a blueprint prevents blueprint from being saved

UE - Gameplay - Blueprint - Mar 25, 2015

Blueprint cannot save when a function from a function library is present in the blueprint unless any alteration is made within the function library. Once editor is closed and re-opened the user must ...

Roughness rendering differently on Macs

UE - Graphics Features - Oct 4, 2016

The roughness value for Macs renders differently (less rough or glossy) compared to Windows. It also seems to render as expected within the Material Editor preview window, but when applied to an obj ...

BlueprintNativeEvents with no return value (void) cannot be overridden in Blueprints.

UE - Gameplay - Blueprint - Dec 22, 2014

BlueprintNativeEvents (and BlueprintImplementableEvents) are not available to be overridden in a Blueprint Graph if they do not return a value. This affects both functions present in source code, as ...

Unable to read Stat FPS text on Samsung S6 Edge

UE - Platform - Mobile - Oct 28, 2016

This is only occurring on the Galaxy 6 Edge. Was tested on multiple iOS and Android devices and could not repro Galaxy S6 Edge_6714 OS: 5.0.2 ...

Pose assets do not snap to the pose when Additive is disabled

OLD - Anim - Oct 24, 2016

This is a regression from 4.13.1 as it was snapping to the pose then. If this was an intentional change please let us know and we can update the test case to reflect this. ...

AvfMedia: Many file types supported on macOS and iOS are reported as not supported in UE4

Media Framework - Sep 6, 2016

See also https://forums.unrealengine.com/showthread.php?64082-Media-Framework-Roadmap&p=590662&viewfull=1#post590662 ...

Ensure after adding BlueprintCallable to a function and compiling the BP in the editor

UE - Gameplay - Blueprint - Nov 29, 2016

I am seeing an ensure after adding a UFUNCTION(BlueprintCallable) accessor and then adding that function to the BP and compiling the BP in the editor. Repro frequency is only 3/6 times. ...

Cannot delete Notifies from Anim Notify Manager

OLD - Anim - Jan 4, 2017

Cannot delete Notifies from Anim Notify Manager. Regression: YES Broken: 3224400 (4.14.1) Worked: 3172292 (4.13.2) ...

memory leak from incorrect PhysX shape ref counting

UE - Simulation - Physics - Mar 9, 2017

PxShapes are created with a ref count of 1, and it is up to the caller to decrement this once the shape has been attached to an actor. There are a handful of places in the code in which this doesn' ...

Importing fbx with armature resulting in crash

UE - Editor - Content Pipeline - Import and Export - Jan 20, 2020

Importing an fbx file with armature on MAC results in crash Tested: 4.23.1 CL#9631420, 4.25 CL#10889200 ...