Transaction not yet indexed

MXKB3vvS675w9zsfi3qB3DR6Q3CeLdyyZvQMa8RsrcauYHoLUutWzQAJxxDTEfERUsGuvn4dJExGVQQRWViF2LM

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