The transition between servers on 1.21+ does not work, but it works on the versions below

Expected behavior

The transition between servers on 1.21+ does not work. Commands (/an /join or others) to connect to another server do not work on 1.21+, and the bot is kicked.

Additional context

Bot successfully connects to Velocity lobby
Authentication with /login works
Command /joinq is executed
The bot is kicking after entering the command.

I've tried Viaproxy,

tried adding the lines physicsEnabled: false,

tried adding the lines "
bot._client.on('start_configuration', () => { shouldUsePhysics = false })
bot._client.on('finish_configuration', () => { shouldUsePhysics = true })" i
n mineflayer/lib/plugins/physics.js

current code

const mineflayer = require('mineflayer')
const FlayerCaptcha = require('flayercaptcha')


function readArg (name) {
  const i = process.argv.indexOf('--' + name)
  if (i >= 0 && process.argv[i + 1]) return process.argv[i + 1]
  return process.env[name.toUpperCase()]
}
function stringArg (name, def) { const value = readArg(name); return value == null ? def : value }
function numberArg (name, def) {
  const value = readArg(name)
  if (value == null || value === '') return def
  const parsed = Number(value)
  return Number.isFinite(parsed) ? parsed : def
}

const host = stringArg('host', 'play.funtime.su')
const port = numberArg('port', 25565)
const username = stringArg('username', 'example')
const version = stringArg('version', '1.21.4')





const bot = mineflayer.createBot({
  host, port, username, version, auth: 'offline',
  viewDistance: 32,
  physicsEnabled: true
})

console.log(`[bot] Подключение к ${host}:${port} (версия ${version})`)

//
const captcha = new FlayerCaptcha(bot, { delay: 150, isStopped: false })

let awaitingCaptchaInput = false
let captchaSaved = false

captcha.on('imageReady', async ({ data, image }) => {
  if (captchaSaved) return

  if (data.facing !== 'forward') {
    console.log(`[captcha] fake (facing = ${data.facing}) — пропускаем`)
    return
  }

  const filename = `captcha_${Date.now()}.png`
  await image.toFile(filename)


  console.log(`  Save: ${filename}                `)


  captchaSaved = true
  awaitingCaptchaInput = true
})


process.stdin.on('data', (chunk) => {
  const text = chunk.toString().trim()
  if (!text) return

  if (awaitingCaptchaInput) {
    bot.chat(text)
    console.log(`[send] ${text}`)
    awaitingCaptchaInput = false
  } else {
    bot.chat(text)
    console.log(`[message send] ${text}`)
  }
})


bot.on('message', (jsonMsg) => {
  if (awaitingCaptchaInput) return
  console.log(`[chat] ${jsonMsg.toString()}`)
})


bot.on('login', () => console.log('[bot] login ok'))
bot.on('spawn', () => {
  console.log('[bot] spawn')
  captchaSaved = false
})
bot.on('kicked', (reason) => {
  console.log(`[bot] kicked: ${reason}`)
  awaitingCaptchaInput = false
})
bot.on('end', (reason) => {
  console.log(`[bot] end: ${reason}`)
  awaitingCaptchaInput = false
})
bot.on('error', (err) => {
  console.log(`[bot] error: ${err.message || err}`)
})

[Udyz]

same error

[phozzzzzz]

same issue