[otrs] StorageModule->ArticleStorageFS

[Tom]

There are problems with viewing email's body written in attachments as html and plain text when StorageModule->ArticleStorageFS. When I set StorageModule=ArticleStorageFS then when I send email to OTRS in plain text and HTML like it can be done by Thunderbird Mozilla then when I open this ticket under OTRS I have email body shown as attachments (plain text, html). Problem is when for example send to OTRS email is ISO-8859-2 encoded and when I opening this attachments in new window then there are no polish characters visible (ŻŹĆŁÓĄŚę). There is no such problem when as StorageModule is set ArticleStorageDB. What is the Problem? I have in /etc/enviroment LANG="en_US.UTF-8"  and in /etc/locale.gen en_US.UTF-8 UTF-8 in the first row .

System is Debian.