Hello, @lcuevas.
First, let's create an Estimate on a private window. This helps us work QuickBooks simultaneously as it doesn't store any historical files. You can use these keyboard shortcuts to open this window:
- Google Chrome: Ctrl + Shift + N
- Mozilla Firefox: Ctrl + Shift + P
- Internet Explorer: Ctrl + Shift + P
- Safari: Command + Shift + N
Second, if it works, we can go back to a regular browser and clear its cache. Once a cache is piled up, it can be the reason for some unexpected issues on QuickBooks.
Lastly, we'll have the option to use to a different browser like Google Chrome, Mozilla Firefox, Safari, or Internet Explorer.
Feel free to browse these articles when you're ready to convert Estimate into an Invoice:
Let me know if you have any other questions. I’ll be happy to help.