Hello, Strebor129. 

Thank you for reaching out to the Community. Let's check your Vendor Details setting to double-check the default account of your vendor. Here's how to do it:  

1. Click Expenses and choose Vendors. 
2. Select the vendors name, and press Edit. 
3. Under Default expense account, drop-down arrow and choose the expense account. 
4. Tap Save.  

If the same thing happens, I'd recommend reaching out to our Customer Care Support Team. This way, they can take a closer look into your specific account in a screen sharing mode and determine the reason why it doesn't show the expense account in the job. 

You may also refer to this article for more information about: Track income, costs, and profitability by project. 

Don't hesitate to tag me in your comment if you have any other concerns. I'll be here to help you. Stay safe!