i cant received my code in the other app

[cxapython]

Code that causes the issue

from telethon import TelegramClient, events, sync

# These example values won't work. You must get your own api_id and
# api_hash from https://my.telegram.org, under API Development.
api_id = xxx
api_hash =xxx

client = TelegramClient('session_name', api_id, api_hash)
client.start()

Please enter your phone (or bot token): +861881066xxxx

I can receive the code when I use the app to log in, but I can’t receive the code when I use the telethon to send it. I changed two mobile phone numbers and tested it. There is no error message during

[Lonami]

This is likely a duplicate of #3835.

[Lllliubo]

这可能是#3835的副本。

What happened? I tried many times today and couldn't get the code