Thanks for reaching out to us, @user70327. Let's perform some troubleshooting steps to help resolve the issue that you have with the missing invoice tab.
Browser cache may have affected your experience. I recommend accessing your account through a private window to narrow down the result. The procedure can assist in removing any cache-related issues that may have caused the problems. You can save time by using either of the following keyboard shortcuts:
Google Chrome: Press Ctrl+ Shift + N
Safari: Press Command + Shift + N
Mozilla Firefox: Press Ctrl+ Shift + P
If it works fine, switch back to your regular browser, then clear its cache to refresh the system.