So in this case NCM failed to download the full configuration from the device.
How you troubleshot this ?
You must check your Session Trace first to track the activity .
VIEW LIVE NCM logs NCM Connection profile test Compare Success and Failure and troubleshot understanding the reason of Failure
Here is an example case: as you can see immediately after interface # NCM sent a command exit where its stopped downloading the configuration from the device.

Cause:
The issue is in that config line: description # Cisco ASA 5500 GAAE1/2 (Inside) #
Reason:
NCM have build-in logic to recognize config mode command prompt on devices.
That logic check if line ends with ‘)#’ or ‘) #’ and assume this is command mode prompt which mean end of config.
That is why NCM stop capture any config lines after that line.
Resolution:
To workaround this issue please modify that interface description line to not end with ‘) #’.
Looks like only that interface contains such unusual description.
That should resolve the issue