Adding a comment as I just installed my first Inovelli switch (lzw31-sn) along with a Homeseer Ha-100 auxillary switch in a non neutral setup. Same issue with aux not turning off and same temp solution of changing to neutral and setting dimming to 70%. Voltage at traveler is 49.8V with aux switch not pressed and 105V with up pressed and 98.5V with down pressed. At that time I had a mix of fluorescent and 8.8w FEIT led bulbs (2 bulbs in 2 fixtures) I replaced the LED bulbs with incandescents and it seemed to be working just fine. The I changed over to all be 14W FEIT brand LED bulbs. They started flashing so I installed a aeotec bypass and everything was working again without issue. Those LEDs were too cold so I switched them back to the warmer 8.8W LEDs and the issue came up again, aux won’t turn light off unless dimmer is set to 70%. So for some reason it’s associated with the 8.8W FEIT brand Led bulbs.