Не создается кнопка

@bot.message_handler(commands=['start'])
def welcome(message):
  #KeyBoard
  markup = types.ReplyKeyboardMarkup(resize_keyboard=True)
  item1 = types.KeyboardButton('Button-1')
  item2 = types.KeyboardButton('Button-2')
  markup.add(item1,item2)
 
  bot.send_message(message.chat.id,"Добро пожаловать".format( message.from_user, bot.get_me()),parse_mode='Markdown', 
  reply_markup=markup)
 
@bot.message_handler(content_types=['text'])
def button_reactions(message):
  if message.chat.type == 'private':
    if message.text == 'Button-1':
      pass
 
   elif message.text == 'Button-2': #ЗДЕСЬ
      markup = types.ReplyKeyboardMarkup(resize_keyboard=True)
      button_in_menu = types.KeyboardButton('Its working')
      backbutton = types.KeyboardButton('Назад')
      markup.add(button_in_menu,backbutton)

@bot.message_handler(commands=['start'])
def welcome(message):
    markup = types.ReplyKeyboardMarkup(resize_keyboard=True)
    item1 = types.KeyboardButton('Button-1')
    item2 = types.KeyboardButton('Button-2')
    markup.add(item1,item2)
    bot.send_message(message.chat.id,"Добро пожаловать".format( message.from_user, bot.get_me()),parse_mode='Markdown', reply_markup=markup)
 
@bot.message_handler(content_types=['text'])
def button_reactions(message):
    if message.chat.type == 'private':
        if message.text == 'Button-1':
            pass
        elif message.text == 'Button-2': #ЗДЕСЬ
            markup = types.ReplyKeyboardMarkup(resize_keyboard=True)
            button_in_menu = types.KeyboardButton('Its working')
            backbutton = types.KeyboardButton('Назад')
            markup.add(button_in_menu,backbutton)
            bot.send_message(message.chat.id,"test", reply_markup=markup)