Array OnRep Notification Not Running on Server

UE - Networking - Nov 30, 2016

Array variables marked as RepNotify are not calling OnRep on the server when they are not directly set using a Set 'VariableName' node. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 317229 ...

Scaling a SceneCapture2D from Default Scale will cause Decals to Disappear in the Render Target

UE - Graphics Features - Dec 6, 2016

When scaling a SceneCapture2D actor/component any decals there were being rendered within the Render Target disappear. I also noticed that when the SceneCapture2d is set to orthographic, the scale ...

Find Sessions Consistently Returning Results Length of 0

UE - Networking - Feb 24, 2017

It appears that as of 4.15, there is an issue with creating/joining sessions. The attached test project worked fine previously in 4.14, but now is unable to join sessions. The user has stated: Th ...

[CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0::operator()()

UE - Platform - Apple - Jun 8, 2017

This is a common Mac crash that has been occurring since 4.15. It shares the same callstack with [Link Removed], but that was verified fixed for 4.16.0, while this crash still continues into 4.16. ...

Blueprint Diff tool fails to find nodes deleted from an Anim BP and also shows the incorrect State Machine rule

UE - Gameplay - Blueprint - Aug 24, 2017

When using the Blueprint Diff tool to diff an Animation Blueprint, it fails to find nodes that have been deleted from a State Machine rule. It also fails to show the correct State Machine rule when ...

Changes to InputMappingContext made during game play revert to previous state after restarting engine

UE - Gameplay - Input - Nov 21, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. The following Blueprint nodes are affected by the same issue:Map KeyUnmap KeyAdd Playe ...

The tooltip of a UPROPERTY enum is not refreshing in UDetailsView

UE - Editor - UI Systems - Oct 15, 2024

There is an issue with UPROPERTY enums where the tooltip does not update as expected. When the DetailViewWidget is refreshed, the tooltips appear correctly. For example, ToggleShowingOnlyAllowedPro ...

Mobile Depth of Field blurry eveywhere

UE - Platform - Mobile - Oct 30, 2024

user reports I investigated the problem throught the frame capture tools and found that on a real device (iPhone 15 Pro in my case), the depth texture for the SunMask pass is not set (a dummy black ...

Improper clipping in children of a retainer widget

UE - Editor - UI Systems - Slate - Jan 21, 2025

Children of retainer widgets have improper clipping, causing any widgets set to "Clip to Bounds" to clip incorrectly. This may also affect hit testing in cases where multiple retainer widgets are ne ...

[OPENGL]: Enable Subsurface Scattering

Tools - Jun 29, 2015

Subsurface scattering is disabled on all OpenGL platforms despite the shaders being properly translated & OpenGL platforms supporting the relevant CPU-side APIs. This also affected Metal for the WWD ...