Telethon: send_code_request not sending SMS

Checklist

• The error is in the library’s code, and not in my own.
• I have searched for this issue before posting it and there isn’t a duplicate.
• I ran pip install -U https://github.com/LonamiWebs/Telethon/archive/master.zip and triggered the bug in the latest version.

Code that causes the issue

from telethon.sync import TelegramClient

session_path = Path("sessions")
if not session_path.exists():
    session_path.mkdir()

phone_number = get_phone_number()
client = TelegramClient(f"sessions/{phone_number}", api_id, api_hash, proxy=proxy)


async def main():
    await client.connect()

    await client.send_code_request(f"+{phone_number}", force_sms=True)
    verification_code = get_verification_code()
    await client.sign_up(verification_code, names.get_first_name(), names.get_last_name())

    await client.disconnect()


client.loop.run_until_complete(main())

Traceback

Traceback (most recent call last):
  verification_code = get_verification_code() <- stuck here, since no SMS is being received

The send_code_request is sent successfully, however … no SMS is sent. The phone number is definitely not used … is there something new on the library I had forget?

Thanks in advance!

UPDATE: I double checked the phone number right now with the Telegram App itself … and the Code was sent?