Iris V2 and V3 issue when HSM's Keypad arm and disarm setting "Partial button to arm Night" for either keypad, using the Iris V2 keypad and Iris V3 keypad driver respectively.
When this option is set "on" for the respective keypad, and the ON (aka Away) button is pressed on the respective keypad, the system and keypad arm in HSM Status: Armed Night.
It works correctly when the Keypad's Partial button is pressed, and arms in Away mode when the respective option is not set.
If I remember correctly I encountered this issue while working on a now completed major update to my Nyckelharpa app that totally bypasses this issue using it, along with the app's Centralitex keypad driver. My Xfinity (Centralite), Iris V2s, and Iris V3 function without an issue.
I never did solve this issue when using a keypad directly controlled by HSM.