Transaction not yet indexed

21mp488aGqYWFvXCrG1TkkW3vEAqUKCEZEGmhcLD3GnT8Xrpf8HMkud9PUBwD74YXpihi4r5GyHRfdzWK499ASq3

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