Transaction not yet indexed

21D6xaQ3Cuy74NbymCMx7VCLeKAJpm4XSDhnogWHuWP8eV5ghy9cXwMSXN5sJ2hZPzLtZMY2aqxkmgN5rfBqsbF2

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