Unreal Engine Issues

Crash Occurs When Creating Pose Asset from an Animation in Persona

Engine crashes when creating a new pose asset in persona using the Create Asset option -Tested with walk, idle, and run anims -Didn't crash only once out of the several times tested with the Third ...

CurrentTransaction ensure when duplicating an EQS generator

When duplicating a Generator inside an Environment Query, the action triggers an ensure and stalls the Editor for a few moments. This issue was reported and tested in 4.19.2 (CL-4033788). It was r ...

Crash When Compiling Child Blueprint Containing a Custom Event with the Same Name as its Parent's Event

Having a child blueprint that contains a custom event with the same name as a custom even that it is calling from its parent causes the editor to crash when attempting to compile the original parent ...

LevelEditor: "Replace Actor" marks level as dirty even when using external actors

When using external actors, adding/removing/replacing/editing an actor instance inside a level does not cause any modification to the Level package, which helps reduce contention for the map file on ...

[CrashReport] Crash related to asset export - UnFbx::FFbxExporter::FillExportOptions() [fbxmainexport.cpp:152]

This is a trending crash coming out of the 4.18 previews. It seems to be related to exporting assets from the editor. User DescriptionsWhen Exporting assets (static meshes) multiple times via RIGHT ...

Crash when Reimporting SpeedTree asset with Billboard Material reset to the default World Grid Material

A crash occurs when reimporting a SpeedTree asset after clearing the material billboard element and setting it to the default world grid material. The licensee reporting the issue mentions to worka ...

Splitting Transform in Collapsed Graph Crashes UE4

Splitting Transform in Collapsed Graph Crashes UE4. When this is done the editor crashes and that actor can no longer be opened without causing a crash. ...

Orientation Warping breaks incoming poses where bones are in component space

The orientation warping node breaks incoming poses where bones are already in component space. This is because, in EvaluateSkeletalControl_AnyThread, we are repeatedly setting bone transforms direc ...

Crash in reinstancing after removing a variable from a component and compiling

Changing the navigation for the root of a widget blueprint will cause a crash

Changing the navigation of the root of the widget blueprint will cause the editor to crash ...