Transaction not yet indexed

251CM2KTESAx9txpqwiBMDU6bmqo7o5s4ZqQNMRLnWftpnazjCJevgpnCh6bJTUWASQAhbPRVkqoDstYQLPocgn6

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