Missing forward/replied icons


Outlook version
Outlook 2010 64 bit
Email Account
Outlook.com (as MS Exchange)

Using Outlook 2016 (fully updated) with a Gmail account, Win 10 1903

In my Inbox view I have included the fields for Importance, Icon & Attachments.

When i reply to or forward an email, the reply/forward arrow does not appear in front of the email so i cannot see to which emails i have actually replied or which ones i have forwarded.

I have scoured several forums but no one seems to have found a solution that is permanent. Sometimes it works to remove the icon field, restart Outlook, then add it back in, but not always.

Your help would be most appreciated.