Unreal Engine Issues
Unreal Engine Issues
Modifying FinstancedStruct (Blueprint structs) properties inside another FInstancedStruct triggers an ensure and properties do not get saved.
UE - AI - Dec 16, 2024There is a bug with Blueprint structs having FInstancedStruct as a property. If you modify the DefaultValues of any property of an FInstancedStruct inside the blueprint struct asset, an ensure will ...
Incorrect Struct variable type after restarting the editor
UE - Gameplay - Blueprint - Nov 4, 2016If the editor is restarted between creating a blueprint enum and creating a struct / adding a variable of the enum type to the struct, then the variable type will incorrectly show as "Enum" rather t ...
Strange Behavior of Array of Structs default values
UE - Gameplay - Blueprint - Nov 14, 2016When the default values of a struct are set in code and an array of the struct type are added as a class variable, creating a blueprint of the class with show array elements with the "reset defaults ...
Derived struct data is not copied to Base struct
UE - Gameplay - Blueprint - Feb 19, 2024The actor Blueprint is intentionally causing an object slice to occur. In other words, we're copying a derived type to a base type, so the expectation is that only the inherited base properties are ...
Sequencer does not save asset variables in event struct
UE - Anim - Sequencer - Jul 31, 2018When adding a struct to a keyframe, Object Reference variables are not saved and Soft Reference variables are saved sometimes. Opening a keyframe's properties when the selected struct has an object ...
Enable "Set members..." support for vectors and similar structs
UE - Framework - Blueprint - Apr 26, 2022Currently, structs that have a custom make function aren't able to use the "Set members..." node in Blueprints. For vectors and similar structs, this is slightly inconvenient since it requires using ...
Cook Warning "Saving FText which has been initialized from FString" when a user-defined BP structure contains a native C++ struct with an FText
UE - Framework - Blueprint - Sep 23, 2025Consider a C++ struct containing an FText. Now consider a used-defined BP structure containing that C++ struct. When cooking an asset that references such a user-defined BP structure, the following ...
UserWidget Struct members cannot be cleared when set from a parent widget
UE - Editor - UI Systems - Sep 22, 2016Struct members belonging to a UserWidget can be set from a parent widget, but they cannot be cleared. Upon compiling, the member will be set back to it's previous value. ...
Struct crashes when switching variable types while the default values are being shown
Tools - Jan 11, 2016If the user switches between two variable types in a struct while the default values are being shown then the editor will crash ...
Engine crashes after editing a struct variable in use.
UE - Gameplay - Blueprint - Aug 27, 2020After editing any struct variable in use such as adding, removing, or editing, and then compiling afterward the engine crashes. Sometimes it crashes after a few seconds. ...