Unreal Engine Issues
Unreal Engine Issues
Memory Leak When Raytracing Enabled with Specific Rendering Settings
UE - Graphics Features - Ray Tracing - Apr 8, 2025When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...
Crash when converting non-WP maps containing landscape with OnlyMergeSubLevels enabled
UE - World Creation - Worldbuilding Tools - World Partition - Jul 21, 2023When trying to convert a non-WP map with OnlyMergeSubLevels enabled crash after a while ...
[4.10 P2] UI is offcenter for dropdown menus and tooltips in editor
Tools - Nov 2, 2015In Windows 10, on a system set up with 2 970GTX GPUs in SLI, the dropdown menues from the main navigation tabs will be offset and to the lower left of the screen when selected. ...
Crash caused by Buffer Overread in TBitArray operator < function
UE - Foundation - Core - Aug 29, 2018A licensee has reported a crash that is caused by a Buffer Overread in TBitArray's operator < function. While the licensee did not provide reproduction steps, the crash is apparent from looking at t ...
Smart Nav Links created via Load Level Instance are broken, but Simple Nav Links are fine
UE - AI - May 20, 2019Maps brought in via Load Level Instance that contain Nav Link Proxys configured to use the Smart Link instead of the Simple Link end up creating a link at the center of the world instead of their ac ...
A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work.
UE - Simulation - Physics - Nov 22, 2024A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work. The licensee noticed that IPhysicsProxyBase* ...
Select node causes HTML5 project to crash in browser
UE - Platform - Mobile - Nov 24, 2015Select node causes the project to crash on HTML5. Expression (ExportMap.IsValidIndex( Index.ToExport() )) failed in D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\CoreUO ...
Copy and Pasting the Value for a Vector3 Parameter causes Color Picker to Stretch Across screen
UE - Rendering Architecture - Materials - Nov 17, 2016When copying the 'Value' of a color from the color picker within the material editor, and pasting it into the value field of a new color picker dialog window, it stretches across the screen and caus ...
Media Playback - PNG Image Sequence Crashes Editor
UE - Media Framework - Sep 14, 2023The attached 105 frame PNG image sequence ( 1920x1080 w/alpha ) crashes the editor in UE 5.3 and 5.4 when played in the media player or in a MediaPlate. The same image sequence does not crash the ...
Blueprints from UE4 with dangling delegate reroute node crashes on UE5 load
UE - Gameplay - Blueprint Compiler - Dec 22, 2023If a project from UE 4.27 or earlier has a blueprint with a reroute node dangling (no outgoing connection) from a Custom Event Node's delegate pin (red), this blueprint will crash when loaded in UE ...