Web3js event watch catches event without being triggered

bunjee

I have the following simple contract

pragma solidity ^0.4.0;

contract ClientReceipt {
    event Deposit(
        address indexed _from,
        bytes32 indexed _id,
        uint _value
    );

    function deposit(bytes32 _id) public payable {
        Deposit(msg.sender, _id, msg.value);
    }
}

and then a node js file listening to the Deposit event:

let ClientReceiptContract = initContract(ClientReceiptJSON);
ClientReceiptContract.deployed().then(clientReceipt => {
var event = clientReceipt.Deposit();	
	event.watch(function(error, result){

	    	if (!error) {
	    	  console.log(result);
	    	}
	      
	});

});

I am using truffle and truffle-contact to get the abi of the contract.
I am using the test rpc running the truffle develop command.
So first I compile the contract, the migrate and then run the node application.
When I call the Deposit function:
ClientReceipt.deployed().then(inst => inst.deposit(1,{value: 6000000000000000000}));

my node application catches the event and displays the args.
When I stop the node application and run it again, it returns the latest event without triggering any event in the contact.
Any ideas what might be the problem? I guess it has to do with the block number but I don't know how to fix it.