Glad to have you here today, bdman-bellsouth. I appreciate you letting us know about the browser issue you're experiencing when working on your invoices. Let me help provide troubleshooting steps to get things sorted out.
When doing tasks in QuickBooks Online (QBO), sometimes stored cache files can cause an interruption while using our features. To help you fix this, let's consider performing some troubleshooting steps to rule out the possibility of a browser issue. I'd suggest opening your QBO account in a private browser. You can refer to these keyboard shortcuts to open one:
Microsoft Edge: Ctrl + Shift + P
Google Chrome: Ctrl + Shift + N
Safari: Command + Shift + N
Mozilla Firefox: Ctrl + Shift + P
If you've successfully run QuickBooks without having errors, you can go back to the regular browser and clear its cache to remove the temporary files. Otherwise, use another supported browser to see if the issue is with the current one.
Please keep me updated if there's anything else I can further help you with. We've always got your back if you require additional assistance managing invoice transactions. Feel free to leave them in the comments below. Keep safe!