Tool/software:
I have attached two configuration files, the main difference being one with 1 TX and the other with 2 TX, for the IWRL6432BOOST. I followed the tutorial to get the raw ADC data over SPI, which I have attached here as well.
I used the Test_read_adc_data_xWRLx432.m MATLAB script to plot the ADC data (I made some edits to plot all chirps of a single frame in the same plot). I found that the ADC samples for every other chirp (i.e. chirps with even-numbered indices) seem corrupt, which only happens for 1 TX, but not 2 TX. I attached the plots here too.