Solution
Since the signal has 10 channels, the
Component Carrier array number on the
Subblock section of the
DUT & Waveform>>LTE tab should be set to 9 (since it is a zero indexed array) and change the BW on the last element (set it to 20 MHz since that's the BW per Component Carrier) so the rest of the array elements become active. This should allow you to acquire all the channels on the ACP measurement.