This isn't the kind of experience we want you to have with the Google Calendar integration with QuickBooks Online (QBO), @tctheo. That's why I'm here to provide further details about this and the actions you need to take care of the issue.

I appreciate you for performing some troubleshooting steps to fix the issue with Google Calendar in QBO. Since the steps you've performed unable to resolve the integration matter, I'd recommend contacting our Customer Care team. They can initiate an investigation to identify what's causing the issue and guide you with a fix.

In case you want to relay your situation by talking to one of our representatives, you need to request a callback. You'll first have to check out our support hours to ensure we can assist you on time. Whenever you're ready, here's how:

1. Go to the Help menu.
2. Choose Contact Us. 
3. Enter your specific concern in the What can we help you with? field. 
4. Click Let's talk. 
5. Select Get a callback. 
6. Enter your contact details. 
7. Click Confirm my call. 

I've attached a screenshot below for your reference.

In the meantime, I'm adding this article to learn more about Google Calendar and QBO integration: Invoice with Google Calendar FAQs.

Keep me updated on how it goes in the comments below. I'm just around to help if you have other concerns about Google Calendar and QBO integration. Take care always.