Network Core not programmed

Hallo Team,

I am using nrf45340 Audio DK to evaluate Bluetooth LE Audio application example. 

For experimental purpose, I am using SBC codec. I have been following instructions from the nrf Connect SDK Documentation

Iam building and programming using script and not command line. 

I was able to build the application sucessfully using 

python buildprog.py -c app -b debug -d both

After wards, I connected one nrf5340 Audio DK (Headsets right).

After running the python script : 

python buildprog.py -c both -b debug -d both -p

I have the following output from the terminal. 

As we can see the core net is not programmed. However it was mentioned in the documentation that "Given the -c both parameter, it also takes the precompiled Bluetooth Low Energy Controller binary from the applications/nrf5340_audio/bin directory and programs it to the network core of both the gateway and the headset."

Now the Audio DK lights red in color (Logo - LEDs in the bottom layer.)

I have tried programming all the DKs at once (One gateway and two headsets for stereo). In all the cases I do not see a "selected done" option in "core net programmed" table. After programming the RGB3, LED3, and LED1 does not illuminate. 

Edited: Please also note that I was sucessfully able to build and flash the firmware  for each of the DKs "separately" using Command Line. 

Am I missing out something? Do we need to explicitly program the network core of the SoC for audio application when using "script"?

Your support will be highly appreciated. Thank you for your time.

best regards 

Adarsh

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