Transaction not yet indexed

21Zkt8Gw2VAWUvsMEsjf28Fj3cfy9nnPNT1yAw2nkocrCM1CimG5ybWm8MfzQCqsPdprP6MUB6nP2eqeum9kBAaG

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