Yeelight not connected in app

Hi to all.
I have red mi note 6 pro and i have 4 led bulp 2 color.
I had Android 8 and all used to worked fine.
I update to Android 9 and i cant connect anymore to the lamps.
It keeps says device disconnected.
My account id is 6155306151.
I have tryid to reset the lamps, reset wifi but no luck.
Any ideas?

Thanks in advance.

Did you reset the bulbs when you update to Android 9? You don’t need to connect the bulb again if you update your phone.
Please have a check permissions of Yeelight application to see if there’s something abnormal, like network/location permission.

I finally managed to solve my problem.
I download previous version off yeelight app and i managed to connect.
Still cannot connect in the Google and mi home.