I'm all ears with your comments, @CP86. 

We'll conduct a thorough investigation into this, I'd like to ask for clarification. Did you encounter the same issue where the description of items disappears from the invoice dropdown? Did you experience that the invoices and estimates load slower? Any additional information regarding this will greatly help us find a fix.

In the meantime, let's perform basic troubleshooting to see if it's a browser issue by opening a Private/incognito window and up-to-date browsers. The browser cache and cookies become corrupted, causing problems when accessing websites or files. Refer to the following keyboard shortcuts based on your browser type:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Shift + N

If the private browsing session works, clear the browser's cache, as the system restarts. Clearing the cache will reboot the system, allowing it to clear the stocked cache and cookies causing the issues.

Consider checking the computer’s processing power, amount of available RAM, and bandwidth of your internet connection, as this is the basis for QuickBooks Online functionality. Check out this guide to further help narrow down the reason for slow performance: Why is my QuickBooks Online slow?

Check out this link to access some of the most commonly used articles if you need additional references: Getting Started With QuickBooks Online.

Let us know if you have additional questions about invoices and estimates performance. We'll get back right away. Stay safe.