Transaction not yet indexed

1Mc28cgtmL7n9VZYSrtKF7SqdsUNDKLaKkSCc3zMaiK7nvaiUmadmZT1AhnYQUDHvReEdHfQCLfYwGLsS8JHmCg

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