Ledvance WiFi+ devices not showing up in devices API

At first I had my QLED TV added to ST, which also connects to my Smarthome (ioBroker) via API. Then I added LEDVANCE WiFi+ bulbs to ST, by connecting the Ledvance App.
So the ST app shows my TV and the bulbs now, controls are working well.
However the bulbs don’t show up in the devices API of ST.
Does anyone facing the same problem or even better maybe has a solution?
txs guys