Transaction not yet indexed

MKFfZFyUGvuDyvgtJFNBiEynpb5wtMuzd2K8y1ZTZSyGLYy5tPryNf1NGskvRkNbDUKi6CwNVdN5cRwT75vdWTZ

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.