Transaction not yet indexed

21MzkHMLtnizrSeHF3toP9FSn887rkqGw2BSorgTF85PMgVgZPKei4xWVf4xPuNcjwrbZd8RzgFsGQf5QNBCFJu3

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