Transaction not yet indexed

21M2tATUQkTrfbVPLDGLk3NahiFwxCoQEBrbQp1ZFqd5MJnweXqn8hsGK3siLbKMuXdFsSxXdS5mEAZD5LiQ9GuK

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