The issue seems to match defect CSCvv29546 - Intrusion policy is showing as an unknown object in analysis view of intrusion events in FMCDefect link: https://bst.cisco.com/bugsearch/bug/CSCvv29546
Please check the defect, otherwise, a TAC case needs...
Using the Firepower Migration tool (FMT), the below migrations are possible,
Migration of ASA configurations to Firewall Management Center (FMC)Migration from ASA with Firepower Services (FPS) to Firewall Threat Defense (FTD)Migration from Firewall D...
To configure a banner, you'll need to push the CLI config using Flexconfig capabilities.Here is a link explaining how to configure a Flexconfig object:https://www.cisco.com/c/en/us/td/docs/security/firepower/730/fdm/fptd-fdm-config-guide-730/fptd-fdm...
From the console login try to check these two outputs on clish mode, accordingly further troubleshooting action needs to be taken,
> show ssh-access-list> show user
Outputs from one of my lab FTD,