lnd: lncli walletbalance shows incorrect walletbalance

Background

Sometime the last version of LND shows to me incorrect balance of wallet. To see examples below

Your environment

• version of lnd commit cfb5e249b9d6dae9e44dcf56c29c3eda531290fe (actual master at 2019-03-11)
• which operating system (uname -a on *Nix) CentOS 6
• version of btcd, bitcoind, or other backend 0.17.1

Steps to reproduce

Don’t know

Expected behaviour

It should show correct balance from confirmed UTXO from wallet

Actual behaviour

For example right now i saw:

l walletbalance
{
    "total_balance": "85601",
    "confirmed_balance": "85601",
    "unconfirmed_balance": "0"
}

I know that node has 25 BTC. Some BTC in channels. I checked:

l listchannels|grep local_balance|sed -r -e 's#.*"([0-9]+)".*#\1#'|awk '{s+=$1} END {print s}'
1836160500

l pendingchannels|grep local_balance|sed -r -e 's#.*"([0-9]+)".*#\1#'|awk '{s+=$1} END {print s}'
39769984

After i did for checking:

l listchaintxns|grep amount|sed -r -e 's#.*"(-?[0-9]+)".*#\1#'|awk '{s+=$1} END {print s}'
635162828

I saw that all UTXO in wallet are confirmed. So the walletbalance should be show this number but it shows the 85601

After i restarted the LND and after restart:

l walletbalance
{
    "total_balance": "635162828",
    "confirmed_balance": "635162828",
    "unconfirmed_balance": "0"
}

Because i restarted i didn’t catch the bug but i have other lnd node where i see right now the same problem. But i didn’t restarted yet.