Transaction not yet indexed

21MKcu96R6ZcqLkFDd1ncf2vsRsAkhEyvZKn3qbkeAk9tqzqLHc5LLCXRg1xu1XkEstbE4tD41VHmXUm9wLZ9Db1

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