Hey there, jeffreyk28. 

Thanks for posting here in the Community, I'm happy to assist you today. The credit automatically wants to be applied to an invoice, that's why you're seeing it want to be applied to the open invoice rather than against the job. However, if you try and applying it with these alternative steps, you'll be able to successfully record the credit. Follow along below:

1. On the dashboard, click on the Receive Payments icon.
2. In the Customer Payment window, choose the customer on the Receive From box.
3. Tick the box on the specific invoice, then click the Discount & Credits button.
4. Check the credit that you are going to apply and click Done.
5. Hit Save and Close.

I'm also including a few helpful articles down below for you to check out.

• Give your customer a credit or refund in QuickBooks Desktop for Windows. 
• Record a vendor refund in QBDT. 

If there's anything else I can help with, feel free to post here anytime. Thank you and have a nice Thursday.