Currently, we have an ongoing investigation (INV-93599) about QuickBooks Online printing PDF invoices using MAC. Rest assured that our engineers are doing their best to fix it as soon as possible.

I recommend contacting our Customer Care Support team so you'll be added to the list of affected users. This way, you'll receive email updates on the case's status and be notified once it's been resolved. I've added the steps below:

Important: Please note the business hours to make sure experts are available for assistance.

1. Tap the (?) Help icon.
2. Click on Talk to a Human.
3. Enter a short description of your concern and press Enter.
4. Select I still need a human.
5. Choose Contact Us to connect with our live support.
6. Select Messaging or Get a callback.

In the meantime, here are a few workarounds that can help you get back to business.

1. When printing the invoice, select/change Airy New as the template design. See the images below for reference:            

2. When printing a report, export it to Excel or download as a PDF. Then print from Adobe rather than from the browser.

3. If the above steps works, log in to your QBO company using Windows or Mac device not on the Sonoma OS release.

Feel free to also browse this guide on how you can keep track of customers' payments: Receive and record invoice payments in QuickBooks Online.

I appreciate your patience as we work through this. If you have any other concerns, please don't hesitate to drop a comment below. Take care!