Transaction not yet indexed

21C3a3UA7mrkS6iytrymJ2dWatiPPzH6rnRnrYrBiPDJDLf2WrmcSkRPVc7uy1zX6BLuHTXmiK9AD1hqWNuAfXA9

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