Alexa integration not working

Hello - Having issues integrating my 3 devices with Alexa. Ive always had 2 devices in Alexa, but as I couldn’t integrate the third (LED colour 1S bulb), I decided to delete all and reconnect both in yeelight app and alexa app.

Turns out now that while the devices are working properly in my yeelight and mi home apps, alexa is now not discovering all 3 devices. On that end, I’ve disabled and enabled skills, factory restarted echo, restarted my wifi, reconnected the devices on yeelight and tried to rediscover in alexa. Nothing seemed to work.

I’m not sure if there’s anything you can help on your back end but I’ve exhausted all possibilities here. My account number is 6358690275. Thanks in advance.