Unreal Engine Issues
Unreal Engine Issues
Cannot compile a nativized Blueprint with a function that takes an interface as an input parameter and uses it inside the function (e.g. dynamic cast to object).
UE - Gameplay - Blueprint - May 27, 2020Issue occurs because there is a legacy code path that forces all interface parameters to be declared as 'const' in function declarations, even if CPF_ConstParm is not set in exported C++ code. This ...
Packaging With Nativize Blueprints Enabled Disabling AI Perception
UE - Gameplay - Blueprint Runtime - Feb 24, 2017Packaging a game with nativize blueprints enabled is preventing AI Perception from working. This has also been tested in a clean project where the AI Character would no longer be triggering its OnPe ...
Packaging fails with Nativization when function returns array of classes
UE - Gameplay - Blueprint - Apr 28, 2017When a BlueprintCallable function returns an array of classes, packaging will fail if Nativization Method is set to Inclusive. ...
Non-public BlueprintCallable function calls do not compile in a nativized Blueprint.
UE - Gameplay - Blueprint - Jun 17, 2019A nativized Blueprint cannot currently invoke a non-public BlueprintCallable function that's defined in native C++ code without resulting in a C++ compile error. Example: APlayerController::PlayDyn ...
Using nativized functions on buttons to spawn meshes causes assertion failure
UE - Gameplay - Blueprint - Oct 25, 2016An assertion failure is thrown when using nativized functions on an Android device. ...
Packaging with Nativize Blueprint Assets Causes Uninitialized Defaults
UE - Gameplay - Blueprint Runtime - Jul 28, 2016If you use "Set Array Elem" on a vector array but leave "Item" at the default value of (0,0,0) then you'll end up using a temporary uninitialised vector instead of (0,0,0) when it's nativized. Work ...
Project fails to package with const BluperintFunctionLibrary function and Nativize Blueprints set
UE - Gameplay - Blueprint Runtime - Dec 8, 2016If a blueprint function library has a function that is const, the project will fail to compile if Nativize blueprint is set to true. ...
A Blueprint containing an array Swap node will fail to be nativized.
UE - Gameplay - Blueprint - Jul 17, 2020Blueprint assets that utilize an array "swap" node to swap elements cannot currently be converted to C++. Current workaround: Either avoid use of the "swap" node or exclude the Blueprint asset from ...
UBT warning during package when nativized blueprint contains a node from a plugin
UE - Gameplay - Oct 9, 2017When a Blueprint contains a node that was added by a plugin (ex: GetBatteryLevel node added by Optional Mobile Features Blueprint Library), nativizing the BP in 4.16 completed fine but 4.17 gives a ...
Blueprint nativization fail with UE4.18
UE - Gameplay - Blueprint - Jan 10, 2018Switching the Blueprint Nativization mode to inclusive along with un-checking Event Driven Loader will result in an error when trying to package the project. ...