Editing Invoices and Save and Close function not working - Any Ideas?

Hello there, @glasgowdirectors.

Your browser’s stored data may become corrupted or damaged and impacts your browser’s performance. Let’s perform some troubleshooting steps to resolve these unexpected behaviors.

1. Access your QuickBooks Online account on a private browser. Kindly use either of the following shortcut keys:
   • Google Chrome, press CTRL  + Shift + N
   • Mozilla Firefox: press CTRL  + Shift + P
   • Internet Explorer: press CTRL  + Shift + P
   • Safari: press Command + Shift + N
2. If you’re able to edit your invoice successfully, you may want to clear the cache of your regular web browsers.
3. Alternately, you can use other web browsers.

You can check this article for more detailed steps: Troubleshooting browser problems.

Keep me posted if you have other questions. I’m always here to help.