Transaction not yet indexed

21SYnMKJ2hSwYBKT5zqnyrwjfBXnnC7hGX25dM9QFqnJmEUuuLXBQSqEfMcT9wu6hpwQdSXMeiSMRbCggVZZYXeU

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