Hi there, drrcnegex,
Great job for clearing the browser's cache. Let's access your QuickBooks Online account in a private window and change the address from there.
Usually, the system will prompt you this "You've changed [OneTime Customer] Billing Address for this transaction. This change will reflect in your current transactions. Do you want to make it permanent to reflect in all your PAST and future transactions?"
If YES is clicked, it will change the previous invoice's billing address to the new one that's saved. If NO, it will just save the new billing address only for that transaction (invoice).
You'll want to be very cautious in saving invoices for general customers. And, click NO on the message prompt.
If the same issue persists, I highly recommend contacting our QuickBooks Online Support Team. They can create a ticket and send it to our Product Team for further investigation.
Here's how you contact them:
- Sign in to your QuickBooks Online company.
- Go to Help (?).
- Select Contact Us.
- Enter your concern, then select Let's talk.
- Choose Start a chat to connect with us with a support expert.
Don't hesitate to post again if there's anything else you need. The Intuit Community is always open to answer certain questions.
Thank you and stay safe!
