Read\unread & forward\reply

Hi,

on an Outlook 2021 account configured in IMAP mode, we're having these problems:

• read/unread messages are automatically marked as read: that is, I mark them as read and after a few seconds they're marked as unread;
• symbols identifying forwards or replies: they're not displayed next to the email I forwarded and/or replied to;

What do you think it could depend on?

All available Microsoft Office updates are already installed.

Thank you.

Best regards,

Luca Samiolo