Steps to Reproduce
Create a `UEngineSubsystem` in a game module that accesses `USlateScreenReaderEngineSubsystem` as a dependency in `Initialize()`.
For example:
`UCLASS()
class NEBULA_API UMySubsystem : public UEngineSubsystem
{
GENERATED_BODY()
virtual void Initialize(FSubsystemCollectionBase& Collection) override
{
Super::Initialize(Collection);
// This will cause an ensure to fire
USlateScreenReaderEngineSubsystem* ScreenReaderSubsystem = Collection.InitializeDependency();
}
}`