Selector node fails to return running

[FlounderBox]

When ticked, the following tree returns Success, when I would expect it to return Running. Is this intended?

[FlounderBox]

This is the monobehaviour I tested with. Attach to any Unity game object, and enter playmode for the result to be printed in the console.

public class AivoRunningTest : MonoBehaviour
{
    TreeNode<float> behaviorTree;
    private void Awake()
    {
        behaviorTree = Tree();
    }

    private void Update()
    {
        Debug.Log(behaviorTree.Tick((long)Time.deltaTime, 0f));
    }

    public ActionNode<float> ReturnsRunning = new ActionNode<float>((timeTick, ctx) =>
    {
        return AivoTreeStatus.Running;
    });

    public ActionNode<float> ReturnsSuccess = new ActionNode<float>((timeTick, ctx) =>
    {
        return AivoTreeStatus.Success;
    });

    public TreeNode<float> Tree()
    {
        return new SelectorNode<float>
            (
                ReturnsRunning,
                ReturnsSuccess
            );
    }
}