Misalignment between Alarm Control Panel and Vanderbilt Security System

Hi,
I use the alarm control panel to integrate my Valderbilt Security System through a SPC gateway. Settings are part of configuration.yaml
99% of the time it works very well but periodically an “arrive home” automation will disarm my alarm panel ( using the alarm control panel) and my security system will disarm but the alarm control panel will still show as “armed”. Pressing the disarm button on the alarm control panel will not fix the state and only a restart of home assistant will bring them back into sync.

Any input or suggestions appreciated
Thanks