I'm having trouble with the layout of the invoice. It has reverted to the old layout and when I click on "update layout" it reverts right back to the old one.

Hi there, airtron. 

Upon checking, the investigation (INV-93395) associated with this issue has been resolved. Since you've encountered a similar problem, I recommend contacting our support team. This way, they can create a ticket to re-open the previous investigation. 

Here's how: 

1. Go to the Help menu.
2. Choose either tabs to get started:

• Assistant: Get quick, personalized answers. Select a suggested option, or type a question or topic you need help with. If you decide you need further help, you can still Talk to a human.
• Search: Search the QuickBooks Online knowledge base directly, or select Contact Us and choose a way to connect with us:
• Start a chat with a support expert.
• Get a callback from the next available expert.

To make sure you receive timely assistance from our support team, please take a moment to review their support hours. 

Refer to this article for more details about personalizing your invoices in QuickBooks Online: Customize invoices, estimates, and sales receipts in QuickBooks Online. 

The Community forum is available 24/7 for concerns about managing your sales forms. Stay safe!