MFCC implementation in simulink

Hey all, i am confused if the cepstral feature extractor block , which was out from 2018a onwards performs the same functionality as the mfcc function. I trained my classification model in matlab using features extracted with the mfcc function. And I was in need of using my trained model in simulink but could not implement the mfcc function for feature extraction in simulink because of incompatibility. Later i found this block but my model which actually showed me better prediction in the matlab environment is not giving the correct prediction when this features were fed to it. If this is not actually mfcc feature extraction what can i do in simulink to extract them? Please anyone outthere who can guide me? I would be so thankful for any help.