Hi seasea,
Our engineers are still working on a complete solution. If you haven't contacted our Support team, I suggest doing so. That way, they can get your account details in a secure environment and subscribe you to the open ticket for immediate updates.
In the meantime, you can process ACH in the Merchant Center by going to Processing Tool > Accept an E-Check.
Once this issue is fixed, you can refer to the article that Betty shared about processing CC payments in QB Mac.
Thank you for your patience. Just let me know if you need anything else.
