Unreal Engine Issues
Unreal Engine Issues
UAssetImportTask::bReplaceExisting is not supported with interchange
UE - Editor - Content Pipeline - Import and Export - Aug 25, 2023Add this code to a function you call from a blue utility widget or any other way to start the import with this code.TArray<UAssetImportTask*> ImportTasks; for (int32 i = 0; i < cFC.Files.Num(); i++) ...
Renaming assets hits an ensure related to circular redirect
UE - CoreTech - UObject - May 10, 2024You will hit the ensure condition: LogOutputDevice: Error: Ensure condition failed: !SeenPaths.Contains(CurrentPath) in Engine\Source\Runtime\CoreUObject\Private\Misc\RedirectCollector.cpp] [Line ...
Camera View Transformations in Editor and Sequencer Cannot Be Undo (Ctrl+Z)
UE - Anim - Sequencer - May 26, 2025Camera View Transformations in Editor and Sequencer Cannot Be Undo (Ctrl+Z) Description: When switching the viewport to a specific camera actor, any manual movement/rotation of the camera (via ...
Import then cancel while file is read leads to potential crash
TM - Interoperability - Oct 6, 20251/ Import a file with mootools such as an fbx 2/ while the file is still read, cancel the import Result : may crash few times after (when theoretically the file has finished being read) - not repr ...
DataAsset blueprints have the wrong NativeClass
UE - Gameplay - Nov 18, 2025UDataAsset's constructor assumes itself to be the native class, and caches that value for use by the asset registry. However, if the data asset type is defined in a blueprint (i.e. subclassing UPrim ...
Editor crashes when opening a project that includes a plugin with more than two custom Volume classes
Tools - Jun 7, 2017Adding more than two custom Volume classes to a plugin results in any project that includes that plugin crashing when opening it in the Editor. There does not appear to be a problem with adding thre ...
Adding a Local Variable to a blueprint Construction Script will cause a crash
UE - Gameplay - Blueprint - Dec 18, 2014Adding a Local Variable to a blueprint Construction Script will cause a crash ...
Crash when removing or disabling an additive layer track in Persona
OLD - Anim - Oct 3, 2016Editor is crashing when removing and Additive layer Track in persona. Editor also crashes if the curve is disabled rather than deleted. This is a regression from 4.13 ...
Editor crashes if a data table containing an attenuation settings struct
Tools - Apr 19, 2016Editor crashes if a data table containing an attenuation struct is opened in the data table editor. Frequency: 4/4 Crashreporter: [Link Removed] Regression? (No), issue (does) occur on 4.10.4 ...
Duplicating Level With Large _BuiltData File Results in Editor Crash
UE - Foundation - Core - Jun 7, 2018Trying to duplicate a level in the editor that has a large _BuiltData file results in a crash. In the case of the supplied test level, it is over 3 GB. Crash repros in 4.19.2 and Main (CL 4115885). ...