WmfMedia: Track switching does not work

Media Framework - Aug 31, 2016

Track switching is currently not supported, because media with multiple tracks of the same type fail to load. Once that is fixed, implement run-time track switching. ...

FFT corruption in bloom from sampling outside of viewport

UE - Graphics Features - May 27, 2021

Licensee has suggested a fix: "Switching to >= resolves the problem: in GPUFastFourierTransform2DCore.ush, `bool InWindow = ...` at lines 127, 144, 170, and 185." ...

Streaming Virtual Texture UDIN V Offsetting

UE - Editor - Content Pipeline - Import and Export - Jan 31, 2024

UDIN virtual textures appear to have row 0 (U coordinate [0 - 1) swapped to the other side of the texture vertically. ...

LeapHandGrabbing comment is different than actual used value for hand grabbing.

UE - Platform - XR - Oct 24, 2016

The comment for LeapHandGrabbing( ) states grab strength is 0.5 when HandClosed( ) only returns true when grab strength is equal to 1.f. ...

Adding SmartObjectZoneAnnotationComponent to a blueprint actor causes a crash when building the package

UE - AI - SmartObject - Jan 30, 2025

If placing an actor with SmartObjectZoneAnnotationComponent added to blueprint actor in a level, it will crash when the level open. As a workaround, adding SmartObjectZoneAnnotationComponent to the ...

MoveToActor doesn't update AI's path on goal actor's move

UE - AI - Mar 16, 2015

A number of issues with MoveToActor have been observed in 4.7.2, including: 1. Not updating path on goal actor's move 2. hitting obstacles after path updating ...

Using LOD for Per-Poly collision doesn't work

UE - Simulation - Physics - Aug 11, 2016

When choosing LODs for per-poly collision the static mesh stops blocking actors in the level. I tested this on 4.13 preview 1 and it is still an issue. I used the 3dsMax workflow for this process ht ...

iOS apps crash on devices with iOS version 11.2.2 when Metal 2.0 is enabled

UE - Platform - Mobile - Jan 22, 2018

Launching an iOS App that is set to Metal 2.0 on a device with iOS version 11.2.2 causes the app to crash and return to the home screen. This was tested on an iPad Pro as I do not have access to any ...

GoogleARCoreJavaHelper functions are not correctly exported publicly

UE - Platform - XR - Oct 31, 2018

The jni functions in GoogleARCoreAndroidHelper.cpp are not correctly exported, when we tried to build a Test project it failed with this exception:  java.lang.UnsatisfiedLinkError: No implementatio ...

BuildGraph XML Errors Logged Incorrectly

UE - Foundation - Horde - BuildGraph - Aug 30, 2019

Suggested fix from licensee: After investigation, it seems that the filename is passed as a string instead of a FileReference in Script.cs:84. Fixing the issue seems to be as simple as changing th ...