Transaction not yet indexed

KBB21f6pYKGjQaQTa6F6HzuEA4zmuQCue14dNPdSgT8ejvugd38Vz6BPMPkdxjmTUeGrcp3gm6XkZUXVBX2JHSe

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