Hello there, MVG1.

Thanks for sharing such detailed information about your concern regarding the missing labor cost on the Profit and Loss report.

We're determined to help you find a solution for this. In order to move forward, I recommend reaching out to our QuickBooks Care Support for further assistance. They have the tools such as screen sharing to be able to take a closer look at the issue and identify what's causing 

You'll also want to sharing the link of this thread to the representative to refrain yourself from repeating your issue.

Here's how you can reach them:

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.

If you have other questions, just let me know. I'm always happy to assist you further. Have a great day ahead.