Unreal Engine Issues
Unreal Engine Issues
FName no longer equals FName_None when constructed with a trailing underscore and digits in range of 1-9
UE - CoreTech - Apr 15, 2025When an FName is created with a trailing underscore and any number of digits in the range of 1-9 the trailing digits are used as the internal number value for the FName lookup. This results in the F ...
Crash on PIE with varying number of players
UE - Networking - Jan 26, 2015User crashes on PIE when number of players is set to two in the "Play" drop down menu. No crash if number of players are set to 1,3, or 4. Additionally, setting the "Dedicated server" checkbox to ...
ES2 Fallback Fails on Nougat Devices that do not support Vulkan
UE - Platform - Mobile - Aug 28, 2016Discovered this while doing RC candidate testing for 4.13 Works fine in all other use cases: Nougat devices that support Vulkan Marshmallow devices that support Vulkan Marshmallow devices that don' ...
AvfMedia: Many file types supported on macOS and iOS are reported as not supported in UE4
Media Framework - Sep 6, 2016See also https://forums.unrealengine.com/showthread.php?64082-Media-Framework-Roadmap&p=590662&viewfull=1#post590662 ...
Actors disappearing after saving a large number of modifications to world partition maps
UE - Editor - Workflow Systems - Nov 4, 2022From Licensee: "We've encountered a world partition bug where newly created actors go missing in the viewport and Outliner after saving modifications to a large number of actors. This bug is partic ...
Packaging for Linux in a binary build should be disabled when not supported
UE - Platform - Linux - Jan 5, 2015According to the user, if you install Linux toolchain, the binary build will allow you to package for it, and will not handle the failure gracefully ( https://forums.unrealengine.com/showthread.php? ...
A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast it immediately disappears by hitting the world limits
UE - Simulation - Physics - Destruction - Jan 20, 2025A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast ...
Skeletal Mesh Collapses with OpenGL ES3.1 on Tegra K1 devices
UE - Platform - Mobile - Oct 18, 2016When launching to an Android device that supports ES3.1 skeletal meshes seem to collapse in game. ...
The number ordering in the Content Browser for assests is not showing in a correct order
UE - Editor - Content Pipeline - Content Browser - Jan 9, 2015When naming assets in the Content browser, If you include a number within the name, as long as the name is the same as other Assets, the numbers will not be shown in ascending order. Included 2 ph ...
Analog Input does not work for network clients (AddMovementInput scale values other than 0 and 1 do not replicate for clients)
UE - Gameplay - Jun 26, 2015If a value other than 0 or 1 (Ex. 0.1) is put into the 'Scale Value' parameter for the Add Movement Input node, any clients will respond as if the value is 1. User claims this worked in 4.6. ...