Unreal Engine Issues

Struct crashes when switching variable types while the default values are being shown

If the user switches between two variable types in a struct while the default values are being shown then the editor will crash ...

Crash when placing a native UserWidget in a panel within another UserWidget

The engine crashes when trying to initialize a native UserWidget within another widget. This happens because UUserWidget::GetSlotNames gets called before the widget tree is initialized, and we don't ...

Crash when resetting asset import data in static mesh editor

Unable to save Blueprint Function Library if it references a string table entry

Regression. Function library saving crashes if it references to a string table entry. ...

EditConditionHides on Member of struct, that is in Array, causes Assertion Failed when clearing Array in Data Table

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...

[Sound Cue][Open World] - Crash when creating a Sound cue from an Ambient Sound actor on an Open World map

When trying to recreate an issue that resulted in [Link Removed], I came across this call stack.   Regression testing done in //UE4/Release-4.27.2 CL-18427296 and this issue did NOT happen. ...

Crash on debugging a minimized Blueprint (access violation in SWatchTreeWidgetItem)

Debugging a blueprint with a breakpoint while the Blueprint Editor window is minimized causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5531554), 4.23 (CL - 5586947) ...

Crash due to memory after opening the World Partition window with large objects

Regression: Tested in UE5/Release-5.0, this issue does not occur so regression is yes. Reproducing this issue has a mixed reproduction rate. I have gotten the editor to crash when scaling the cube ...

Creating a Blueprintable Struct that contains a Tmap results in Editor Crash

Any blueprint with a TArray of a struct containing a TMap crashes the editor when adding elements ...

Crash when deleting mesh instances of a HISM component

When trying to delete an existing (and saved) mesh instance from a Hierarchical Instanced Static Mesh component the Editor crashes due to a failed assertion, however clearing all instances does not ...