Huge thank you to mavrrick58 for updating his driver here: https://raw.githubusercontent.com/Mavrrick/Hubitat-by-Mavrrick/main/Ring/rkg2_driver so that the keypad properly disarms HSM! This keypad is now usable with his driver.
Remaining problems:
1.) Proximity sensor must be turned off in the driver and then the keypad reset (press reset button on back of keypad once with a pin) otherwise it will not function correctly.
2.) Keypad backlight / status lights do not stay on even if the keypad is on mains power.
