I appreciate you for bringing this to our attention, @mwbeke. Allow me to route you in the right direction to help you address the vendor payment issue.
Please note that the QuickBooks team has limitations on the support we can offer for Melio's product. Thus, I recommend contacting the Melio Support team as they have the necessary tools to assist with any outstanding payment issues that are being held or not reaching the recipient. They can also discuss canceling a payment and reversing funds.
You can find their contact information on the QuickBooks App page.
Furthermore, QuickBooks offers vendor reports that you can generate to effectively monitor all the payments made to your vendors within a specific date range.
I'll be in the Community forum if you have any other concerns besides payments, @mwbeke. Please add a comment below, and I'll provide further assistance.
