Unreal Engine Issues
Unreal Engine Issues
Cannot Set Visibility for a 3D widget component that is applied to Screen space
UE - Editor - UI Systems - May 5, 2015User Can hide a 3D widget component that is in world space. However, if they use a widget component that has been switched to Screen space this is no longer possible. List of ways that do not work ...
Renaming a Sequencer spawnable actor in the World Outliner will revert on save
UE - Anim - Sequencer - Jul 28, 2017Renaming a Sequencer spawnable actor in the World Outliner will revert back to the old name on save. Not a regression because Sequencer spawnable actors in 4.16 didn't show in the World Outliner. ...
UAssetImportTask::bReplaceExisting is not supported with interchange
zComponent - Archive - 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++) ...
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 ...
Instanced Actors: Editor preview don't show correct relative mesh transforms
UE - Engine Scaling - Mass - May 30, 2026Context Actors can be converted into Instanced Actors via the IA plugin. During runtime and in the editor, an instanced actor’s visual is generated from the collection of StaticMeshComponents on th ...
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 ...