You're not telling how you connect to the FTD. I suspect you're using directly console attachment? With console attachment you're basically just hooking into the 'last-known-state' which the device is in. In your case, you left the device at expert m...

Always collect DART logs from your Secure Client when creating a TAC case on this matter. Based on this post information, I cannot determine a root-cause. DART can be installed with your setup of Secure Client as a module.

The config is not meant to be used as a backup method. Config is meant to be used as an easy way to export/import certain functions/features from one appliance to another one, in a fast and easy way. Backup method is the correct way to go, as you ens...