BLE Extension reliable link

Hi

I have downloaded this xxxx.aix file (see the link) to use in my MIT app but there are some missing options. For example, in DeviceFound block, there are no options such as (BluetoothLE1.DeviceFoundWithIndex(index, address, name, rssi). Where can I find a reliable BLE extension other than this place: (MIT App Inventor Extensions).
Regards
Mo

Is you blocks toolkit set to Default in Project Properties?

Hi
Yes

Can you get what you need using the provided blocks ?

Yes I can get all

Problem solved then ?

Can that work the same as the advanced option?