Osticket 1.14.1
PHP 7.3
Mariadb 10.4

I put a ready answer with 2 attachments

after, I called on the ticket to send,

but after answering the attachment it disappears from the ticket

Does anyone know what can it be ?

If you switch back to English does it work properly? (This will rule out the language pack you have installed)

Are you seeing any PHP errors in your PHP error logs?
Are you seeing any MySQL errors in your MySQL error logs?
Are you seeing any [unknown] webserver errors in the webserver logs?

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