Transaction not yet indexed

21AUMgQiNFzwBNmmydAWH7mtpeJom2zbeGeUVVfUvrtJEQTtMzcuYMSBSpgxB7cMwDWLdRrmi5DTFPdsqmCTYGxT

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