Transaction not yet indexed

21Nbs7cMzk9488KGokcZFthKP53STCuAcEtpA9Xbjb987H1JcFovgq1cjUutD2r6NfWatmHf3zs6GTJ7NAVB3zfs

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