Thanks for chiming in on this thread and for sharing your situation. 

Let me route you to our support for this problem.

The investigation is still open for the Tab function. You'll want to check out the suggestion shared by my colleague Divina_N here. Then, reach out to our Customer Care Team, so your company details will be added to the affected user list. This way, you will be notified when the issue is resolved.

Please take note that our support hours for QuickBooks Online Plus, Essentials, and Simple Start starts from M-F 6 AM to 6 PM PT and Saturday 6 AM to 3 PM PT. For the Advanced version, we're available any time, any day.

Here's how you can reach out to us:

1. Click the Help icon located in the upper right-hand corner.
2. In the Search window, click the Contact Us button located at the bottom.
3. Enter your question and click Let's talk.
4. Choose either Chat with us or Have us call you.

If you have the new QuickBooks Assistant help update, you can follow these steps:

1. In your QuickBooks Online account, go to the Help > Assistant.
2. Type Talk to a human and enter what do you need help with.
3. Click No if none of the articles shared are helpful and select Chat with us or Have us call you.

You can also get our direct phone number through this link: QuickBooks Online Support.

Should you have any additional questions or need help with other concerns, please let me know the details in your reply. We're always available to assist you.