@JohnG @Eric_Inovelli I’m also following up on this as I just ran into the exact same issue. LZW30 with a dumb switch as a 3 way. 2 Light fixtures in the middle (2 bulbs each, home depot Eco LED). The moment I put turn the circuit on, the light will go on for a split second, and off, and then on and off. While the light is doing that, the LED on the LZW30 turns green red green red.
I’m pretty sure the wiring is correct. Do I need to get a dimmer instead or an aux? I’d like to avoid aux as I don’t have a neutral on that side.
I really like to get this working so that I can replace all my switches and there are a lot of 3 ways.