I know it's significant to view your Project List when you sync Hubstaff to QuickBooks, brendanil. I can share some information about this matter. 

The possible reason the project list is not appearing might be due to a misconfigured integration. To resolve this issue, I recommend reaching out to Hubstaff's support team to inquire about QuickBooks data synchronization support and request assistance in addressing this matter. 

Additionally, you can set up and manage projects directly in QuickBooks to track your project's profitability. 

Please know that I'm just a post away if you have any other questions about managing your project lists and syncing apps in QuickBooks. Have a great day ahead.