Transaction not yet indexed

21k6jEn8VdFu9QmBBFuBihpXiU3h3fd7sUwa955vjGmhCzb86TWsj8MTkS7eTCLfSCegnvLbTH3q58mkq7kYJQJ2

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