Hello @alireza82
As per my understanding, the issue is that you can not find any events from "events" under "Connections" from "analysis" menu, although the connection was disconnected. is this understanding correct?
If yes, how is the logging options configured in your FMC?
https://www.cisco.com/c/en/us/td/docs/security/firepower/70/configuration/guide/fpmc-config-guide-v70/connection_logging.html?bookSearch=true#ID-2174-0000034c
Please kindly check above page to make sure that you have configured appropriate logging options for your ACP rules.
If my above understanding is incorrect please let me know the details, such as how you configured logging options, how you tested and confirmed that the connection was disconnected.
Regards