Hello there, cherriddleb.
We haven't received any reports regarding the invoice due dates. We can do a few troubleshooting steps to get this working again. Cache helps your browser's background processes run smoothly. However, it can also cause issues when piled up. Here's how to get rid of any-cache related concerns:
- Open a private browser and log in to your QBO account. It uses but doesn't store cache.
- If you can change the due date successfully, we can go back to your regular browser and clear the cache.
- Other supported browsers are good alternatives, too. Each of them uses a different cache.
If you encounter a specific error message, please let us know. Additional details would be much appreciated.