I would suggest opening a support ticket on support.fortinet.com and getting an engineer to assist you. This will require debugs to be enabled and logs to be pulled to validate an issue and could result in an developer ticket being made. Thank you!
If this information was useful, please click on the thumbs-up button! Anthony
The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges.