As I understood it from the message from Yeelight staff it can’t and won’t be fixed, so it’s best just to move on.
The message said third party functionality (Alexa, Google Home) has been disabled by Yeelight for many products but that the Mi Home app will still work fine, which it does.
I haven’t seen an official announcement that this is the case.
Twice on this thread alone Yeelight staff has said they are working on the issue. Acknowledging it as an issue rather than suggesting the app is no longer supporting this functionality.
Again, the worst part of this is a lack of any clear information from Yeelight.
On Sunday, the lights didn’t work all day with Alexa.
The rest of days stop working at 22:00.
Hi all, we have made some improvement on server side, please re-discover devices and try again. Sorry for the inconvenience.
I haven’t had any issues the last couple of days. Back to responding quickly. Thanks