Unreal Engine Issues
Unreal Engine Issues
References to recompiled Blueprint CDOs that exist outside of the immediate class hierarchy are not being replaced during compilation.
UE - Gameplay - Blueprint Compiler - Feb 24, 2022Currently, the Blueprint compiler will only update references to a reinstanced CDO/archetype object if it falls within the immediate hierarchy of the Blueprint class type OR if it's a component temp ...
UPlacementSubsystem can return unintended factories from FindAssetFactoryFromAssetData
UE - Editor - Workflow Systems - Oct 13, 2023Factories registered to the PlacementSubsystem using UPlacementSubsystem::RegisterAssetFactory will always be added to the end of the AssetFactories array. Which means if there are any existing reg ...
HTML5 - View is incorrectly drawn
UE - Platform - Mobile - Sep 23, 2016The view in a packaged HTML build will not draw the game view as the entire view space, neither in custom sized window nor fullscreen. ...
Media Player Causes Game To Crash On IOS When Loading Video Multiple Times
Media Framework - Feb 2, 2017On the iphone 6+ it appears that videos played, then unloaded, then reloaded, and played again using the media player will cause a game crash given enough time. This behavior doesn't seem to occur ...
When a Niagara System has SimTarget set to GPUCompute Sim, CameraQuery is only returning data from the Player0 camera, ignoring the PlayerControllerIndex.
UE - Niagara - Nov 8, 2024When a Niagara System has SimTarget set to GPUCompute Sim, CameraQuery is only returning data from the Player0 camera, regardless of PlayerControllerIndex. The expected behavior would be to have the ...
Physics Constraints do not have the same values if they are part of an 'Always Loaded' level
UE - Gameplay - Dec 3, 2014Physics Constraints do not have the same values if they are part of an 'Always Loaded' level. They will work correctly in the Persistent level and a level that is Streamed in. This becomes problem ...
Cannot set auto success range to an invalid value in the AIPerception component
UE - AI - May 3, 2019When modifying the value of "Auto Success Range from Last Seen Location" to a value that is not it's default, you can not set it back to its default -1 one value. This was reported and tested in 4 ...
Vertex Animation anti-aliasing improvement
UE - Graphics Features - Jun 2, 2015A licensee has reported that their vertex animations are leaving a lot of be desired with anti-aliasing. Specifically using vertex animated meshes can leave aliasing remnants behind while it's shift ...
[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh
UE - AI - Navigation - Feb 6, 2025Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...
Editor mode keyboard shortcuts active when in Play In Editor
UE - AI - Navigation - Jun 20, 2025Editor mode keyboard shortcuts active when in Play In Editor. This behavior is a departure from previous versions. It was described by the licensee as confusing and it clashes with gameplay assigne ...