Hi there! I understand that your daily puzzles in the Jigsaw Master app on your Mac with OS X 10.15.7 are not showing up. Let's work through this together.

First, can I ask a couple of quick questions to better understand the issue?

1. Are you connected to the internet when you try to access the daily puzzles? (Because these puzzles typically require an active connection to download new content.)

2. Have you tried restarting the app or your Mac since you noticed this issue?

3. Do you see any error messages or other abnormal behavior when you open the daily puzzles section?

In the meantime, here are some steps you can try:

1. Check Internet Connection: Make sure your Mac is online and that the connection is stable. The daily puzzles need to download fresh data regularly.

2. Restart the App: Completely close (quit) Jigsaw Master and relaunch it. This can refresh the connection.

3. Check for App Updates: Go to the Mac App Store, check for any updates for Jigsaw Master, and install them if available.

4. Log Out and Back In: If the app has a login system, try signing out and signing back in to refresh your account data.

5. Reinstall the App: If none of the above works, you can try uninstalling and then reinstalling the app to fix any corrupted files.

Let me know how these steps go or if you've tried any of them already. We'll take it from there!