@Wayne-TP 

It is one, specific bulb. I performed the hard-reset, re-added it to my app and put it in a group.

I tried turning it off and on, adjusting temperature and brightness via the app.. seems OK.

Then, I turned the lights off via the S200B button and now I've got the same light, blue, again. Turn off via the button, then back on... it's ok. I turn down the brightness via the button and the light eventually switches into blue. Turn off and on... now the light is normal again.

When the light refuses to be any color but blue, the way I seem to be able to reliably reset it is to set the color to the lowest temperature and 100% brightness. Then, the bulb behaves, mostly, until I start changing the brightness or temperature again.

It's just the one bulb, now, but I did see this behavior in another bulb, but only 3 or 4 times. Now that other bulb behaves normally.

@Wayne-TP 

Wayne-TP wrote

  @123456781 

 

Do you mean the problem occurs only when controlling with the smart button? Please double-check the automation settings. 

 

Can you share some screenshots of your automation setup here?

No. Not only with the button. Also with the Tapo app, but it seems to happen more with the button.

I tried attaching files to this post, but it's really annoying/difficult to do so. There are only two actions related to the button:

Single Click - turn lights on/off

Rotate - smart action, rotate anticlockwise, "Brightness -"

Neither of these set the color or temperature.