Transaction not yet indexed

21Py36xi4r7y4YX7hdEHiQbn7f8QubCDMiFb3yuUNZJKGgkCaVoeHa1ovRMS8Q4GpW6Pc65CRf3m6KCquKvkCtuK

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