Alexa can't discover lights anymore

Hey all,

Everything was working fine yesterday, everything was linked and working correctly in Alexa. I then discovered that my wife’s account that we use for Alexa was still configured to be in our home country (UK) even though we currently live in the US. So I changed her residence on Amazon and all of our Alexa devices routines etc got wiped. I decided to set everything up again and all of our devices are reconnected but I cannot get yeelight to be discovered again in Alexa. Any suggestions on what to try? The lights work fine in the yeelight app, I even tried re adding a few lights in the app to see if that would allow them to be discovered but didn’t work.