Unreal Engine Issues
Unreal Engine Issues
OSS Null won't find multiple LAN sessions hosted by a single instance
UE - Online - Feb 22, 2023This happens because of how FLANSession::Tick will handle receiving multiple response packets from a single host. FLANSession will cache the ResponseGuids of any incoming host response packets, so i ...
iOS Device Orientations Inverted
UE - Platform - Mobile - Jul 2, 2020The EDeviceScreenOrientation landscape values appear to be inverted on iOS based on the comments in the code. i.e.EDeviceScreenOrientation::LandscapeRight // The orientation is landscape with the h ...
Investigate if iOS Remote Mac builds can be made without VisualStudio
UE - Platform - Apple - Dec 16, 2022Currently, to build an iOS only app via Window's Remote Mac build system, Visual Studio needs to be installed, even though it isn't used to compile the iOS app. Verify why VisualStudio is needed fo ...
iOS ReplayKit isn't working in UE5.1+
UE - Platform - Apple - Apr 21, 2023In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...
Cannot touch at top of screen after input japanese on UEditableTextBox on IOS
UE - Platform - Mobile - Apr 5, 2022[translated comment from licensee] This issue can be found in a IOS project using the Integrated Keyboard. it occurs when using a Japanese keyboard on EditableTextBox. There is no problem with Engl ...
Investigate state of embedded and dynamic framework support on iOS
UE - Platform - Apple - Jun 5, 2020Licensee reports it's not possible to use the dynamic framework used by the latest release of the iOS version BugFender - [Link Removed] Licensee bug report: : https://github.com/bugfender/Bugfende ...
ASan on iOS is broken
UE - Platform - Apple - Mar 1, 2024Address Sanitizer (asan) is currently not working on iOS. This could be a helpful feature to get working again. ...
Fail to copy files to IOS app with AdditionalBundleResources and UPL
UE - Platform - Apple - Sep 14, 2024When using AdditionalBundleResources in the Build.cs file to copy files, the files appear in the Resources directory of the generated Xcode project. However, these files are not found in the final i ...
Unreal Editor Submenus Disappear on Mouse Hover on Linux during Remote Session
UE - Editor - Applied Usability - May 8, 2025Sub-menus disappear when using Linux in a remote session in launcher build of UE Release 5.5.4. ...
AssetRegistry has poor performance when a large map is resaved: Directory IO
UE - Foundation - Data Pipeline - Cooker - Mar 10, 2025IO cost of directory scans is one of the costs present in the AssetRegistry when a large map is resaved. Maps can have external actors which all have to be rescanned and reported to the map for incl ...