Transaction not yet indexed

21k6pSiCHRWkd7ZM3XLf5n1HUv4aN4RvRpd1ayf7Wga4xtd1opozF7N8tSuTvtdjvkhFNWU9VQBip8vCJ4UgjDF5

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