Unreal Engine Issues

Ensure failure !bStaticCall nativizing blueprint calling blueprint function library function

With exclusive nativization enabled and a blueprint calling a blueprint function library function a project fails to package due to an ensure failure !bStaticCall in BlueprintCompilerCppBackend.cpp. ...

Get Transform at Distance Along Spline does not work properly with Blueprint Nativization enabled if the Spline has multiple points

Using Get Transform at Distance Along Spline with a spline that has multiple points along with Blueprint Nativization causes the output of the node to become unpredictable. Regression? No This occ ...

Interface with one or more BlueprintNativeEvent declarations will lead to a compile failure during packaging with Blueprint nativization enabled.

In the UHT boilerplate that's generated for the FGUseableInterface type, there is a pure virtual declaration that's emitted for the BlueprintNativeEvent's required _Implementation() method: #define ...

Packaged project crashes when using get "Get Data Table Row" and Nativize blueprint Asset is set to true

Packaged game will crash on open when using Nativize blueprint asset in the project settings if the user is calling the node Get Data Table Row ...

Packaging will fail if the Nativize Blueprint Assets option is used in a project containing a third-party plugin

If a third-party plugin is present in a project that is being packaged with the Nativize Blueprint Assets option turned on, the packaging process will fail because necessary header files in the plug ...

Crash upon launching packaged game with nativized blueprints that include Add Child Actor Component node with a class already set

When using the Add Child Actor Component node with a class set on the node with Blueprint Nativization enabled, the packaged game crashes upon launch. A workaround for this is to leave the class bla ...

Component name conflict when reparenting from a blueprint parent to a native parent causes data loss and component pointer to be null.

Reparenting a blueprint from a blueprint to a native class will cause data loss if both parents have a component with the same name. The component ptr will always be null after reparenting. Expected ...

Saving Behavior Tree with Blueprint task inheriting from native class invalidates Blackboard key when BP contains a function

A regression introduced in UE 5.6 causes Blackboard key selectors in Blueprint tasks to become invalid when the Blueprint inherits from a native subclass of UBTTask_MoveTo (or UBTTask_BlackboardBase ...

In Standalone mode, when reading world partition actor descriptors for BP actors, "bIsSpatiallyLoaded" receives its value from the native base class instead of the BP class, so BP actors are loaded/unloaded based on the wrong condition.

Consider an actor defined in C++ with "bIsSpatiallyLoaded" set to true (the default), and a derived blueprint that overrides "bIsSpatiallyLoaded" to false. Now consider an actor instance of that blu ...

BP nativization doesn't work with localized text