[APP][Pro&Cloud] Shelly

I am trying to include a Shelly BLU Door/WIndow into Homey Pro 2023. Step 1 completed successfully, i.e. the device works properly in the Shelly ecosystem. But I am stuck in-between steps 2 and 3. I am not sure what is meant by “pairing with Bluetooth device driver” as instructed in step 2.

I am trying to include the BLU D/W via Add device - Shelly - Any Shelly Bluetooth Device. I have enabled the BLE proxy in the relevant Shelly Plus 1 PM device both in Shelly and in Homey Pro. I follow the instructions, but when scanning for the devices the Homey App just shows an empty screen with an error message. Cannot read properties of undefined (reading ‘forEach’). Short pressing or long pressing the button in the BLU D/W does not help.