Hi there! I understand that you're taking small quizzes within the Sharpen app on your Mac running OS X 10.15.7, and despite answering correctly, your quiz scores always show as zero. Let's see if we can get this sorted out.

First, can you tell me a bit more about how you're taking these quizzes? For example:
- Are you using the Sharpen app itself or accessing quizzes through a browser?
- Is this happening for all quizzes or just specific ones?
- Have you noticed if the app or quiz interface shows any error messages after submission?

Based on what you shared and general issues like this, here are some initial steps to try:

1. Refresh or Restart: Sometimes the session may glitch. Log out from the Sharpen app or website, restart your Mac, and log back in before retaking the quiz.

2. Check for Updates: Make sure your Sharpen app, if you're using the dedicated app, is up to date. An outdated version may have bugs affecting scoring.

3. Clear Cache and Cookies: If using a browser, cached data might cause display issues. Try clearing cache and cookies or try a different browser.

4. Verify Internet Connection: Ensure your connection is stable as scores might fail to sync properly if there's network hiccups.

5. Quiz Settings or Grading Issues: Occasionally, the quiz itself might have configuration problems—sometimes the correct answers aren’t registered properly. If this persists, it’s worth contacting the course administrator.

If you’ve already tried those or they don’t help, the issue might lie deeper in how the quiz records and tallies scores—sometimes variables or scoring settings cause a zero score despite correct answers, as seen with other similar systems1.

Would you like me to guide you through checking some of these options, or would you prefer I help you draft a message to Sharpen support to investigate this?

Let me know!