After installing a 3 way on my Artika Skylight flat LED panel (dimmable),  the panel slowly goes from being bright to dim and then off as if the dimmer button was pressed but both switches doesn't look like it's being preset unless they're is a defect. I also don't have the ability to brighten or turn on/off. The light does blink red exactly like this thread on Reddit. https://www.reddit.com/r/TPLinkKasa/comments/xps4ch/ks230_flashing_red_light_already_switched/?rdt=37355

The wiring matches the old  3 way switches including traveler and neutral. 

I also noticed that the output load is 45 so it should be ok and not drawing too much power and it works with HS220. I moved it back to the dumb 3 way switch and it works fine so I'm thinking it's a compatibility issue with the kit. Just need to confirm. I also have a junk Jasco zwave I can try but I really don't want to go this route.