Linked Yeelight offline

I have 3 Yeelight lights that were working just fine, but today I cannot control them in Smartthings, they are always offline, but they are working just fine in Yeelight app.
After I turn them on in Yeelight app they apear online in Smartthings app but as soon as I try to control them in Smartthings they go offline.

Already found the problem, a password change by me made the linked Yeelight not working, had to delete the linked Yeelight and link again and all is working.

I have the same issue but only when I change the temperature (or color) of a Yeelight GU10 RGB led bulb inside the ST app, the Yeelight becomes blue and then goes offline. I have to “restart” the lightbulb inside Yeelight app in order to work again.