The Arm/Disarm commands when using the Ring Alarm Keypad G1 driver have stopped syncing with HSM sometime in the last couple of weeks. I know it was working previously.
To troubleshoot, I created a virtual device using the Ring driver and had the same problem. When I switched to a different keypad driver the Arm/Disarm commands started working, which is what leads me to believe the problem is with the Ring driver specifically.
I can see activity in the event log when pushing buttons on the physical device, and the current states will change, which is another reason I think there may be a gap between the driver and HSM. It is worth noting that changes made in HSM will sync to device, just not the other way around.
I am on the latest 2.4.1.154 hub version.