Inbound Email - Sent Folder Not Linking Correctly

Hi,

I have set up inbound emails. The INBOX folder works correctly.

The Sent folder shows a list of sent emails which is correct.

The problem is when I click on the emails with the purple tick, the sent email doesn’t display. Instead I get a random email from my inbox displayed. The 3 without a tick do link to the email correctly.

What does the tick mean, and how do I get the emails to link to the tick correctly?

I have noticed that if I manually import the sent Emails they now display correctly.

Autmatic import box is ticked though so I’m not sure why it isn’t working in the first place.