Physics Constraint doesn't hold if one Component is used for constraint

UE - Simulation - Physics - Jul 22, 2015

Physics Constraint doesn't hold if one Component is used for constraint User Description: Hello, I recently updated the project from 4.7.6 to 4.8.2 and the physics constraint don't seem to work an ...

Niagara Vector Field CPU access Error prevents its use in projects

UE - Niagara - Jan 31, 2020

Niagara VectorFields do not function properly since "Fix CPU Access" changes are not persistently saved. After every Editor restart or reopening projects, the Niagara-VectorField driven Emitter and ...

PhysX Crash In Attached Project During PIE

UE - Simulation - Physics - Jul 29, 2016

The user is experiencing a PhysX crash in their project. They stated that the source files contained in 4.12.5 are different from Nvidia's Github version of 3.3.4, which apparently contains a fix fo ...

Splash Screen orientation will not change when in Portrait and Upside Down on iPhone 5

UE - Platform - Mobile - Mar 12, 2015

When changing the Orientation in the iOS settings to Portrait and Upside Down, the splash screen will still appear in the landscape orientation when the project opens. this issue will only occur on ...

ResavePackages commandlet with -fixupredirects flag won't update asset references on shared collections

UE - Editor - Content Pipeline - Content Browser - Mar 29, 2018

We currently have two methods of fixing up redirectors: the ResavePackages commandlet and the Fix Up option within the editor. While the editor's option correctly handles collections via FAssetFixUp ...

lots of wasted Volumetric lightmap samples

UE - Graphics Features - Lumen - Jun 20, 2019

Expectations: The samples should only surround the lightmass importance volumes.  Imagine if we build a 8K*8K map with lightmap importance volume at the corners of the map, even using stream levels ...

Duplicate slots being created in Anim Slot Manager

OLD - Anim - Dec 11, 2015

Duplicate slots are being created automatically under the Default Group in the AnimSlotManager. This is causing some problems because it replaces the originally created slot with the duplicate in t ...

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 ...

Unreal Studio: Multi User Viewer Template Menu: Next Arrow Bug

UE - Anim - Sequencer - Oct 11, 2018

"There's a bug with the menu where you cant get to the next step (server browser or host) when you have a VR headset plugged and available. The "Next_Btn" button is greyed out on the last step. You ...

Editor crash when an unsupported material domain or blend mode is selected when previewing a Nanite mesh in the material editor

UE - Rendering - Features - Nanite - Aug 27, 2026

Fix in UE6: 56133257 This Jira is for 5.8.3 tracking ...