Sequencer does not support Quaternion Rotation when manipulating transform tools or piloting cameras

UE - Anim - Sequencer - Oct 16, 2015

Noticing an issue when keying a camera and then playing back the animation it turns or spins in directions i never intended. Think we need check box for toggling Use Quaternion linear interpolation ...

CAD Datasmith no longer support Rhino 6 materials/texture on import

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 13, 2018

Incorrect number of parameters in empty Shipping version of the DrawDebugString() function signature

UE - Foundation - Core - Mar 26, 2019

The DrawDebugString() function has to versions. One is the actual function to display a string of debug text in non-Shipping builds, and the other is an empty function that is used in Shipping build ...

Fix forwarding of dedicated flag and number of players when running a functional test

UE - Networking - Jun 21, 2019

As described in the UDN question, some settings aren't forwarded correctly to the game instance in PIE during a functional test. Proposed patch attached. ...

Content Browser does not sort names using numbers properly when going over 9

Tools - Dec 19, 2019

This can happen when creating any content or duplicating them. I was also able to reproduce this issue in the Levels window when creating new levels.  ...

Compatible Skeletons: Support additive animations with different skeleton for additive base

UE - Runtime - Animation - Jun 30, 2023

See linked UDN for details: [Link Removed] ...

Nanite custom depth rendering is missing support for r.CustomDepthTemporalAAJitter=0

UE - Rendering - Features - Nanite - Dec 14, 2023

Nanite custom depth rendering doesn't "de-jitter" the view parameters for custom depth rendering when r.CustomDepthTemporalAAJitter is set to 0. This was discovered by a licensee and reported via U ...

Geometry Collections don't support any collision visualization modes (Collision, CollisionVisibility or CollisionPawn)

UE - Runtime - Simulation - Jun 27, 2024

Geometry collection objects do not display any collision visualization, either collision color or wireframe overlay when the view mode is set to Player Collision or Collision Visibility or when the ...

Long load time for files with large numbers of trees in 2025.2

TM - Core - Oct 6, 2025

Reported in SF [Link Removed] User reports that multiple files with large amounts of trees take substantially longer to load in TM 2025.2 compared to 2025.1.1. Confirmed with one of the user's fil ...

[CrashReport] UE4Editor-Core.dylib!FArchiveFileReaderGeneric::InternalPrecache()

UE - Platform - Apple - May 23, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. [2016.08.05-09.09.15:492][ 0]LogFileManager:Warni ...