Transaction not yet indexed

21D3vtfJAYiUCoZKoDKm4EA3HnD2KA6t6TuuvRVFHmAVL2Q2Zy719uvc1TSh5mc3iDqnpZbUaYPmSyRm65KKbFkZ

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