IPS packet logging

[rg19]

Hi, I have a Fortigate 60F v6.2.7 - I have packet logging enabled, and have had some IPS hits today.  I see the paperclip icon to show a logged packet under Log & Report > Intrusion Prevention but can't see any way of downloading the logged packet.  If I double click on the line to open the Log Details window on the right hand side, Archived Data is empty.  Any suggestions on how to download the logged packet?