I’ve got 2 LZW31-SN Red Dimmers that I have in a 3 way configuration (in the same box). Each one controls half of my kitchen lights with the dumb switch in a different box on the other side of the kitchen. They are configured with the Line and Load in the same box as the smart switch, and with neutral wiring. They are each powering 3-4 indoor LED flood(?) lights. with the sort of flatter and wider bulb surface to them.
I’ve got everything working almost perfectly now. The smart switches operate perfectly from their own paddles, but not quite when toggling from the dumb switch. Turning off works immediately and perfectly. However, turning on takes a good 1.5 seconds to register, and every now and again will just completely not register and then state of the toggle effectively flips. Then toggling again will then turn on the lights. It also will get confused and miss a toggle if you happen to toggle quickly a few times.
I didn’t quite find another problem like this in the forum. Someone had mentioned something about a capacitor in the lights or wiring that would throw the detection of the switch off, but I’m not sure if that makes sense here.