Transaction not yet indexed

21Y16FTcbxCgL5XV4gpbHwYuHtHsewRSN7neiA7NZJAMdCyZWDcTGaKGSC3QGXkT3e8qRf33zQVtd2HGkWACVfZ6

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