Inverted normals with Datasmith .STP import

UE - Editor - Content Pipeline - Datasmith - Importer - Jan 15, 2020

When importing this .stp file through Datasmith, the normals are inverted upon import. Attached are screenshots of the normals in AutoDesk Alias and McNeel Rhino. This was reported and tested in 4 ...

Sequencer Frames Render Black When Four or Less Frames Are Rendered

UE - Anim - Sequencer - MRQ - Apr 22, 2022

Occurs: 5/5 times **MRQ renders black frames when custom playback range is set to four frames or less. Regression does not occur: tested using //UE4/Release-4.27 @ CL 18429761 GH Note: Issue does ...

Local Exposure can cause large variations in PreExposure under certain conditions

UE - Graphics Features - Sep 16, 2025

PreExposure is influenced by LocalExposure in PostProcessEyeAdaptation.cpp:1265. It appears when the scene is particularly dark and using manual exposure, the LastAverageLocalExposure can read a lar ...

Expanding a folder in the Finder through the editor will crash the editor

UE - Platform - Apple - Mar 16, 2015

Expanding a folder in the Finder through the editor will crash the editor. Reproduced in 4.7.2 binary on 10.9.5 Crash Report: [Link Removed] ...

GPU particles disabled on Quest

UE - Niagara - Feb 9, 2024

GPU particles were disabled on Quest 1 due to a compute issue. We need to validate / fix issues for Quest 2 / Quest 3. Reported in [Link Removed] ...

All Vive Trackpad Inputs Send The Same Input

UE - Platform - XR - Jan 13, 2020

The vive trackpad inputs all read as the same input. Found in 4.24.1 Reproduced in 4.25 Main ...

Compiling Source for Mac from GitHub causes Editor Initialization to Hang

UE - Platform - Apple - Dec 17, 2015

In addition to the Crash Reporter: We have a user reporting this on the AnswerHub: https://answers.unrealengine.com/questions/346668/editor-crashing-on-launch-35-new-install-mac-osx-1-1.html Upon ...

OnAudioFinished doesn't execute when "Persist Across Level Transition" is enabled on "Create Sound 2D"

UE - Audio - Jan 15, 2020

Custom Events with binding to "OnAudioFinished" do not work if "Persist across level transition" is set to true when using the "Create Sound 2D" node. This was reported and tested in 4.23.1 (CL-96 ...

"Select All Descendants" shortcut doesn't work in folders

Tools - Jan 27, 2020

The shortcut for "Select All Descendants" doesn't select the contents in the selected folder in the World Outliner. Using the right-click method works exactly as expected. This was reported and tes ...

Sequencer- New takes will not respect project setting take number if initial asset doesn't have a shot number

UE - Anim - Sequencer - Jul 18, 2024

With 5.2, we allowed the take separator to be multiple characters long. But it would appear that when using this feature, if you don't also have a 'shot number' before the take separator, then the n ...