Cannot shield / send with testnet

I get this error shielding or sending from the testnet server. Maybe needs to be upgraded? 


```"\u0000\u0000\u0000\u0000�\b���������\u0001\u0012�\u0001failed to validate tx: WtxId(\"private\"), error: transaction did not pass consensus validation: transaction uses an incorrect consensus branch id�\u0000\u0000\u0000 grpc-message: \r\ngrpc-status: 0\r\n"```

edit: mainnet works fine, kudos! 