Transaction not yet indexed

21akv7AY4bQ5LeqSgCTsqBwPrauA2YVzxGRFuYtp7rgFCtuGZu1CsrcxfWAEauCc5SSMJwKfCYXVXTBUjiFPS4BM

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