GpgOL plugin fails to show the encrypted attachment. It worked a few times and have been able to download the attachment but have not been able to see the attachment again. I can see the attachment icons on list email pane on Outlook.

Versions:
Windows 10 Enterprise
Outlook 2016
Gpgwin 3.1.14

Target email was sent from Apple Mail with GNUTools package installed. The email was encrypted using OpenPGP format.