Hi there, @TeleToast. Thanks for posting in the Community space and bringing this to our attention. I'm here to lend a hand.

We're introducing a new estimate and invoice experience in QuickBooks Online (QBO) to help you land jobs, keep work moving, and get paid faster. With this new experience, there are a lot of things that you can do. And these are the following:

• Customize estimates and invoices on the spot.
• Get invoices paid faster.
• Get estimates approved faster.
• Track and manage estimates in one place.
• Manage it all on the go.

For more details about this, see this article: See what’s new with estimates and invoices in QuickBooks Online.

To further check why your logo, colors and set-up are completely gone when creating a .pdf or sending an email invoice using your custom-formatted invoices and estimates, we can perform troubleshooting steps by logging in via incognito mode or a private window. This way, it confirms if the cache is the cause.

Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

Once logged in, try to create an estimate or invoice again. If it works, go to your default browser and clear the cache. See Clear cache and cookies to fix issues when using QuickBooks Online for more information. 

Otherwise, switch to a different browser like Firefox, Google Chrome, or Safari. The one you are currently on may be having a temporary issue with QuickBooks, and using a new browser for the moment will allow you to get back to work.

You may also visit this resource to know what computer and browser you need for the best QuickBooks experience: System requirements for QuickBooks Online, Accountant, and QuickBooks Self-Employed.

Additionally, I'm attaching our Community link if you need help adding, organizing, and sending invoices: Invoices and payments.

Please let me know how things go on your end. I'm always here to lend a helping hand. Take care.