Yeelight sunflower bulb (connected via USB adapter) does not work

Yeelight sunflower bulbs (connected via a USB adapter) are no longer visible to miwifi apps or mijia apps.It seems that the latest router software or app updates have broken it - its previously work.

Is there any solution? I also see that it can not be added manually as it only lists the new wifi enabled yeelight bulbs as an option (no mention of a connection via usb adapter). Does anyone see the same problem?

is there any other app which supports the yeelight sunflower bulb (connected via USB adapter) ?

Yeelight bulb:
Mi router wifimini: - Version 2.18.13
Miwifi App: version 4.1.1
Mi home App: version 4.1.0