Welcome back to the QuickBooks Community, fratinize. I can see how important it is to populate invoice items and see the essential details accurately when using the Sync with Contacts features. Please know that we aim to deliver customer satisfaction at all times and fix an issue as soon as possible. I'll ensure you can achieve your task after performing the troubleshooting steps below.

To start with, you'll have to update your QuickBooks Desktop for Mac to the latest release. This is to keep your software up-to-date so you always have the latest features and fixes while running QuickBooks.

Then, I suggest running the Verify and Rebuild Data Utilities to get this sorted out. The Verify Data utility identifies any potential data damage issues that might've caused items on the invoice won't populate. While the Rebuild Data utility repairs damaged data in your company file. Before this, you'll have to secure a backup copy of your company file.

To Verify data:

1. Go to the File menu. Then, scroll down to Utilities.
2. Select Verify Data.
3. Click OK to close all windows. 

If you see “Your data has failed the integrity check” you need to rebuild your file. If there are no problems with your data, you’re done.

To Rebuild Data:

1. Go back to the File menu.
2. Choose Utilities.
3. Select Rebuild Data.
4. Click on OK to close all windows.

For further details, you can open this article: Verify and rebuild data in QuickBooks Desktop for Mac.

On the other hand, please know that the first time to sync your QuickBooks lists with Contacts, the program creates duplicate Contacts cards and places them in a new group. That's the reason it adds another double address in your Contacts. With this, you may want to consolidate those cards.

Here's how:

1. Go to Contacts. Then, choose All Contacts.
2. Go to Card Menu and select Look for Duplicates.
3. When the contact finishes looking for duplicate entries, select Merge.

You can click this article to view extra details: Sync Contact on QuickBooks for Mac.

Lastly, you may refer to this article to see what’s included in the QuickBooks Mac Plus 2023 release and how you can use them to benefit your business: What's new in QuickBooks Mac Plus 2023.

Don't hesitate to click the Reply button below if you still have concerns with your invoices and managing customers' details in QBDT. I'm always here to help, fratinize. Have a good one!