Transaction not yet indexed

21UHtMiyKACjgWSvrmj4c2yfJ1ZpWXfHzubGs8f9auu9abRQFswkhdf8GYFBQU1GqcrRzLFbA1ZDwkyfoeRFtgo6

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