Unreal Engine Issues
Unreal Engine Issues
Null access to Unpossessed controller with seamless travel
UE - Gameplay - Mar 9, 2019The unpossessd controller will not be removed from UWorld::ControllerList unless destroyed. This causes null access to the ControllerList when GC occurs during seamless travel execution. The unposse ...
'Platform Stats' incorrectly display the number of Texture Calls for a material
UE - Rendering Architecture - Materials - Jul 29, 2024When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...
Datasmith Export Bug with Camera Target
UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 7, 2025Potential bug was encountered when exporting vray cameras and their targets that have been path-constraint to corresponding splines. The resulting export file shows no camera targets; hence, missing ...
Changing between multiple Streams that are contained within an array does not work
UE - Gameplay - Blueprint - Mar 20, 2015Changing between multiple Streams that are contained within an array does not work. ...
Character Hands Disconnected from Weapons in Shooter Game
Docs - Samples - Sep 27, 2016The characters in ShooterGame share a bug where their left hands are offset from the weapons they hold, while their right hands are fine. ...
Bad references for Lighting Scenarios when moving Levels and Map Build Data Registry to different Folder
Tools - Feb 2, 2017When moving Lighting Scenario Levels and their associated Map Build Data Registry to a new folder within the Content Browser, the references within the Levels tab are updated as [MapName_BuiltData]. ...
FBX files with multiple Meshes with only 1 unwrap per mesh will have invalid Light Map coordinates assigned
Tools - Jun 8, 2014An FBX with Multiple Meshes and only one unwrap per mesh (no 2nd UV channel) will import the first mesh in the file correctly but will produce invalid lightmass settings on each additional mesh impo ...
Crash when using CastChecked<>(nullptr, ECastCheckedType::NullAllowed) in configurations where checks are disabled
UE - CoreTech - Jun 19, 2025When using CastChecked<>(), the second parameter can be passed as ECastCheckedType::NullAllowed to make the check succeed when the input is nullptr. However, in UE 5.5 up to the latest engine versio ...
Allow custom code and related blueprints to be migrated from one project to another.
UE - Gameplay - Blueprint - Mar 22, 2016Currently, after migrating a blueprint that is based on a code class to a new project, the blueprint breaks due to unknown parent ([Link Removed]) Migrating & copy/pasting the code along with the b ...
Adding a variable named "Class" causes Get Class Defaults node to appear to select input pin when dragging off output pin
UE - Gameplay - Blueprint - Apr 13, 2016If a class variable is given the name "Class", creating a Get Class Defaults node and setting Screenshot provided by user in AH post ...