Hello, Amy_C. 

On MAC, QuickBooks Tool Hub isn't available. But allow me to show you what we can do to resolve the issue.

Since you've already performed verify and rebuilt data and no error was found. Other troubleshooting steps remove  PLIST Files from both the User and the System. This will ensure that all data are free from any problem. You can follow the steps below on how to perform this:

Delete User PLIST files

1. Navigate to the "Finder" menu situated at the top left corner of the Mac desktop.
2. Select the "Go" option and long pressing the "Options" button on your keyboard.
3. Select the "Library" option, then choose the "Preferences" folder.
4. Look for "PLIST files" present next to the QuickBooks name.
5. Once found, move the files to the trash bin and clear the trash folder.

Delete System PLIST Files

1. Navigate to the "Finder" menu situated at the top left corner of the Mac desktop.
2. Tap on the "Macintosh HD" option.
3. Select the "Go" option and long pressing the "Options" button on your keyboard.
4. Select the "Library" option, then choose the "Preferences" folder.
5. Look for "PLIST files" present next to the QuickBooks name.
6. Once found, move the files to the trash bin and clear the trash folder. 

Then restart QuickBooks so the program will run fresh. 

You can read through the subjects in our QuickBooks for Mac user's guide to learn how to manage your finances with QuickBooks Desktop for Mac. 

Let us know if you have any questions. We'll always be right here to help you.