Automatically assigned journal entries repeating

Hi there, djbbeary.

Welcome back to the QuickBooks Community. I'll share troubleshooting steps to ensure QuickBooks will assign the journal entry numbers seamlessly.

Since the said option is now working inaccurately, data damage might be the reason why the numbers started repeating the same numbers. With this, I recommend running the Verify/Rebuild Utility tool to check and fix any issues in the company file. Before doing so, make sure to create a backup to avoid any accidental data loss.

Here's how to Verify:

1. Under the File menu, choose Utilities.
2. Select Verify Data.
3. Hit OK when you see the message QuickBooks detected no problem with your data.
4. If Verify finds an issue with your data, you will be prompted to Rebuild Now or View Errors.

Here's how to Rebuild:

1. From the File menu, select Utilities.
2.  Choose Rebuild Data.
3. Select OK if you receive a prompt to back up your company file.
4. Select Close or View Results when you get the message Rebuild has completed and proceed with the next step.

To see additional information, you can click this article: Verify and Rebuild Data in QuickBooks Desktop. 

Once done, I reccomend creating a dummy journal entry and manually enter the transaction no. Then, you'll have to delete it after saving it. This is to ensure that after verifying/rebuilding your company file, the data refresh its default state. You can click this article to see the detailed steps on how to perform the process: Create a journal entry in QuickBooks Desktop for Windows or Mac.

Please refer to this article to view additional recommended instructions on how to resolve performance issues while using your QBDT: Resolve QuickBooks Desktop performance issues: Manage your data file.

Please don't forget to update me on how things go. I'll be around if you need further help, as I want to make sure you're all set. Have a great day!