Hello carabinwoodworks,
It's fantastic to hear that you've been using TSheets integrated with QuickBooks Online to simplify the payroll and invoicing processes. Let me point you in the right direction to get the support you need.
You'll need to ensure that the service items you're using to track billable hours are all entered into QuickBooks, or that the list was imported from TSheets upon integration with QBO. Here's how you can Add product and service items to QuickBooks Online.
Support for TSheets is provided by the TSheets team here: Contact TSheets. TSheets agents are trained to assist you with the integration with QuickBooks Online and will help you work through this speedbump so that you can get back to business.
I'm here if you have any questions about using QuickBooks!