Web3.js subscription for 'newBlockHeaders' misses blocks occasionally

[zebpayShravan]

Ethereum Client: Parity/v1.8.2-beta-1b6588c-20171025/x86_64-linux-gnu/rustc1.21.0
web3.js: 1.0.0-beta.29
Node: 8.9.1
Provider: Websocket

The below code misses one or two blocks once in a while.

This is how I'm using the subscribe

  var blockWatcher = web3ws.eth.subscribe('newBlockHeaders',function(err,res){
    if(err){
      logger.error('coudlnot subscribe to latest blocks',err);
      process.exit(-1);
    }
        //logger.debug('succefully subscribed to latest blocks',res);
  });

  blockWatcher.on('data', function(blockHeader) {
     //process block
  });

Am I missing something here?

[evseevnn-zzz]

That can be problem of Parity.

[Soletiq]

Same problem here.

[nivida]

This has to be an issue of the connected node.