The Bat - broken investments?

Question

Yandex

Letters that came from mailboxes @ yandex.ru received from mailboxes on Timeweb have broken attachments.
The problem is observed on three computers where The Bat is installed.
Features of the problem:
1) attachments are broken not in all letters, but approximately 2 out of 3 letters;
2) attachments in letters from other mail systems are 100% intact;
3) if you send a letter received in The Bat to another mailbox on the same Timeweb, you receive it in The Bat - broken, and if you receive it in MS Outlook, then it is whole.
There are boxes not only on timeweb, from which mail is always received intact, including from Yandex.
Where to dig?

Answer 1

Yandex technical support answered:

The file problem you reported was caused by a technical problem on our end. We found the causes of the problem and fixed them. Please check, everything should work fine now. We will do our best to ensure that this situation does not happen again in the future.
We apologize for any inconvenience caused!

We are no longer seeing problems.

Answer 2

Three days ago I had exactly the same problem! Still looking for a solution, please write if you find something :)

Answer 3

There was such a problem. A better way than reinstalling The Bat! over the old did not find. Helped. There seems to be a bug in the code itself.

Answer 4

Here is the response from Yandex received:

These problems with sending emails with files are caused by a glitch on our side.
Our specialists are dealing with the consequences.
I understand that this causes you problems in working with mail, I apologize for all the inconvenience.
When the problem is fixed, I will notify you immediately.