Transaction not yet indexed

21ffXQ4qzRCjm1dmuQyKSyoRSt1JA8nBhvyGAorEGHWoz6k2kPVmsyLUQjpvouZxVw6MpsrtiyhNMaCNLyi5FuU5

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