New feature in tg FROZEN Account

[anmv]

Code that causes the issue

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Expected behavior

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Actual behavior

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Traceback

BadRequestError:FROZEN_PARTICIPANT_MISSING

File "telethon/client/updates.py" , line 353 , in _update_loop
     diff = await self(get_diff)
File "telethon/client/users.py" , line 30 , in __call__
     return await self._call(self._sender, request, ordered=ordered)
File "telethon/client/users.py" , line 92 , in _call
     result = await future

Telethon version

1.40.0

Python version

3.12.3

Operating system (including distribution name and version)

Ubuntu 24.04.1 LTS

Other details

This is a new feature in telegram. Account freeze. I thought it might be important to update the library for it

Message:
Fatal error handling updates (this is a bug in Telethon v1.40.0, please report it)
Exception

BadRequestError
FROZEN_PARTICIPANT_MISSING

Checklist

• [x] The error is in the library's code, and not in my own.
• [x] I have searched for this issue before posting it and there isn't an open duplicate.
• [x] I ran pip install -U https://github.com/LonamiWebs/Telethon/archive/v1.zip and triggered the bug in the latest version.

[zerolimits303]

I’m encountering the same issue on both Telethon v1.39 and v1.40.

This seems to be related to Telegram's new "account freeze" feature — the account gets frozen immediately after performing certain actions like: Changing 2FA password Updating profile name Uploading a profile photo Sending a message

In contrast, passive actions like get_me, get_entity, get_messages do not appear to trigger the freeze, at least for now.

Hope this helps with reproducing the bug. Let me know if any logs or traces are needed.

[Alex22891]

Can any of you provide the json that the tg produces if the account is frozen