What is the reason for having the Disable Freepbx Log and Log Verbose Messages settings in Advanced Settings vs Settings > Asterisk Log files?
If you have syslog and fail2ban log settings in there why not the FreePBX log settings?
Also, it appears that disabling Log Verbose Messages in Advanced Settings causes /var/log/asterisk/freepbx_security.log to not work, which then causes the fail2ban pbx-gui jail to not work. Perhaps the tooltip can mention that.