UTXOs remain stuck unconfirmed

The Issue

when using wallet_prefill_addresses and waiting for utxo to confirm (checking the result of utxo_list where all entries must have height !=0) the height isn’t updated after a block is mined.

Steps to reproduce

1. use wallet_prefill_addresses to refill addresses
2. use utxo_list to wait for the transactions to confirm
3. repeat until at least one entry is stuck on

   "height": 0,

for at least 1 mined block

Expected behaviour

the height should update after a block is mined and the transaction is confirmed

Actual behaviour

the height never updates until the daemon is restarted

System Configuration

{
  "id": null,
  "jsonrpc": "2.0",
  "result": {
    "build": "rc",
    "ip": "54.209.131.62",
    "lbrynet_version": "0.20.0rc9",
    "lbryschema_version": "0.0.15",
    "lbryum_version": "3.2.1",
    "os_release": "4.4.0-121-generic",
    "os_system": "Linux",
    "platform": "Linux-4.4.0-121-generic-x86_64-with-Ubuntu-16.04-xenial",
    "processor": "x86_64",
    "python_version": "2.7.12"
  }
}

[eukreign]

we’ve switched to the new wallet, so this shouldn’t be an issue anymore, please re-open or file new issue if this happens again

[nikooo777]

it appeared to be still happening, though i moved away from using utxo_list to check utxos, instead I just wait for a block and spend.