Transaction not yet indexed

5i21nRi5bzokcRa6Nz4oYSaEWvZrP6RuGJ1TbuhR4V4C3w3vSWdFb6GtqBVbEPTTYc7cmoWpoRjhuKSzDFV7EDE5

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