I am having the same issue.  Support said it a major system wide problem for over a week.  

This software roll out should have never happened until tested by real life users.

Issues:

Software does not recognize mailing addresses that the United States Post Office uses.

Can't pay bills without entering email addresses,  which my customers do not want. 

Can't pay multiple bills to same vendor in a single payment. 

I brought these issues up in the first few days of its roll out. Still has not addressed these issues.

I want back to using my banks free Bill pay and just mark the bills as paid in QBO.

Very disappointed with this software.