Transaction not yet indexed

21Mkv1Mm1vMqNEcMf746tSg5PJ5afGE7AzaeH79YdCcEVydW8VWp5Ee8MSxwQDLGrYA5FLXUe93irit8aKZNRZeW

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