Different balance for same private key using bcoin and copay

Question

I´ve got a copay wallet for test purpose. In there I have used a wallet for quite a while. Now I´ve started to play around with bcoin and wanted to import the wallet from copay to bcoin. therefore I´ve imported the tpriv into bcoin with /wallet/importedDemoWallet:

{
    "witness":false, 
    "passphrase":"sample", 
    "watchOnly": false, 
    "accountKey":"tprvxxxxxxxxxxxxx[...]"
}

Here I´ve got the problem that in bcoin it only shows me a balance around 1.4 tBTC while in the copay wallet it shows 2.4 tBTC. even after a rescan the result does not change. can someone tell me whats wrong here? shouldn´t be the balance in both case the same?

UPDATE:

result from get server info:

    "result": {
        "version": "2.0.0-dev",
        "protocolversion": 70015,
        "walletversion": 0,
        "balance": 0,
        "blocks": 1722115,
        "timeoffset": 0,
        "connections": 12,
        "proxy": "",
        "difficulty": 1,
        "testnet": true,
        "keypoololdest": 0,
        "keypoolsize": 0,
        "unlocked_until": 0,
        "paytxfee": 0.0002,
        "relayfee": 0.00001,
        "errors": ""
    },
    "error": null,
    "id": null
}

Answer 1

There are several factors that could be causing the discrepancy.

• Make sure you are running the latest version of bcoin (v2.0.0 was just released)
• Make sure your node is fully synced to the testnet blockchain.
• Make sure all the transactions in the Copay wallet history are confirmed.

Other possible issues:

• Do you make a lot of transactions with this wallet? Like, more than 10 or so in a single block? It's possible you've exceeded the BIP44 lookahead and some manual configuration may be necessary to recover all the transactions (although this particular behavior is usually fixed with an additional rescan)

• When you rescan, do you specify a block height to rescan from? Make sure that is low enough to catch your complete transaction history.

Compare the history of the two wallets (https://bcoin.io/api-docs/?shell--cli#get-wallet-tx-history). Can you determine which TXs are missing from the bcoin wallet? It might be helpful for debugging if we can identify a pattern.

If you want more interactive help debugging, you can find the developers on IRC #bcoin or on slack: https://bcoin.io/slack-signup.html