@Sam Albright - Thank you for reaching out to the support, happy to assist you. MABS install Enterprise version for SQL server which has 20 core limit. Please find below the details.
So this limit is for SQL Licence which is shipped with MABS. You can either lower the cores of the server and try again installing MABS or you can use your own SQL Licence to install SQL and then install MABS application using the existing SQL instance.