Good Afternoon, @JB94. 

Thanks for joining in on this thread. This sounds like an error within our system. Don't worry. We can try a few basic troubleshooting steps to help fix this problem. 

First, let's create a back up of your company file. Here's how: 

1. Go to the File menu. 
2. Pick Switch to Single-user mode. 
3. Go through step 1 again. 
4. Hover over Back up Company and then tap Create Local Backup. 
5. Click Local Backup and then Next. 
6. Choose Browse and where you want to save your backup company file in the Local Backup Only section. 
7. This runs a test to make sure your backup file is in good shape before you save.
8. Press OK. 
9. Hit Save it now and Next. 

Afterward, delete the partial payment and invoice, and then recreate them. You can also choose credit card without processing it again. Here's a link that may come in handy: Record an invoice payment. 

Let me know if you need help with anything else QuickBooks. I'm always here to lend a helping hand. Have a fantastic weekend!