Hi Micheal,
Sorry for the late reply. I've actually been able to reproduce this issue. I'll put a ticket in with the development team to have a look at it.
As a temporary measure, you can go to the QuickBooks tab group > Employees > Time Tracking and uncheck the "Wait for sync approval" checkbox for the time entry and save again. It should then sync to QuickBooks.
Thanks for bringing this to our attention.
- Adam