I'd like to help you make sure that the correct payment account is used, Austin20221.
There are times that too much saved and cache data in your browser can cause unexpected results when performing a task in QBO.
If you have a different browser in your PC, switch to it while creating the transactions. You can use Chrome, Mozilla, or Microsoft Edge.
Alternatively, you can also follow these keyboard shortcuts to open an incognito/private browsing session if you only have one browser:
- Ctrl + Shift + N for Google Chrome
- Ctrl + Shift + P for Firefox
- Control + Option +P if you're using Safari
- Ctrl + Shift + P for Microsoft Edge
After that, create a couple of expenses to check if the payment accounts are not going back to the old one. If it's already working fine, delete your browsing history by following these steps: Clear Cache and Cookies to Fix Issues When Using QuickBooks Online.
I'll be sharing these articles as well for additional guidance when reviewing vendor-related transactions.
Tag me in your reply or post more questions in the Community if you have other questions aside from this. We're always happy to answer them for you.