Yeelight unavailable

I have two kinds of yeelight bulbs and the yeelight meteorite light. They work great, beside some temporary issues, until they get unavailable. Then I have to unscrew them and put them back in, otherwise they NEVER get available again. I know, there are already a dozen threats for this, but no solutions yet. I also found no solution on the internet, on the yeelight forum itself there are several threats reporting availability issues.

What I would love to understand, maybe someone can help me: Is it an issue of the integration, or of the products? Because this leads to different actions for me.

Thank you,
Steeveno