Thanks for following this thread, ejob.

The previously shared steps above are used to resolve the concern about using product/service to clients for the billable expenses. I suggest trying them out. If it doesn't work, I suggest contacting our QuickBooks Care Team. This requires to be taken a closer look to investigate why your QuickBooks stops working. This procedure requires company information which needs to be pulled up in a secure environment.

Here's how you can reach us:

1. Go to the Help menu at the upper right.
2. Select Contact Us.
3. Enter your concern.
4. Click Let’s talk.
5. Choose Get a callback. 
6. Type in your contact info.
7. Select Confirm my call.

Please know that the availability of support depends on which type of subscription you're using. You can check out this article for our contact information. Click on the QuickBooks Online drop-down to see the most updated support schedule: Support hours and types

The Community is always open if you have other questions while working with payroll. I'll be around to help. Wishing you a great day ahead!