HomeKit Smart Bulbs Stopped working!

Seems the latest s/w updates have screwed up HomeKit! Three of my smart bulbs stopped working(2 Meross & 1 Vocolink) with the latest update. I tried to “reset” two of them(1 Meross, Vocolink). The resets would not work and I could not add the bulbs back into HomeKit. However, the Meross bulb worked just fine on the Meross app. When I checked the specs of the Meross bulb on HomeKit (the one that worked on the Meross app), the specs showed an old Sylvania bulb that I got rid of long ago! I tried to delete the old Sylvania bulb from HomeKit and it WOULD NOT DELETE! What have they screwed up now! The Apple s/w updates get worse and worse… Very irritating!