There are no error messages associated with this issue.
This issue was noticed after upgrading to eDiscovery Platform 10.3.3.
Work Around:
Go to the Analysis & Review tab.
Click on the search icon (Magnifying Glass).
For View select 'Toggle Attachments' and 'Detailed View'.
Once the results return change 'Documents per page' = 100 and then scroll through the view and Validate that attachments load correctly in the detailed view.
A patch is available for eDP 10.3.3 to resolve this issue. Please contact support to obtain this patch.