There could be several reasons why your Apple Podcast is not showing up. Here are some potential issues and their solutions:

1. **Podcast Approval:** If you've recently submitted your podcast to Apple, it might not have been approved yet. Approval usually takes anywhere from 24 hours to a week.

2. **Podcast Update:** If you've recently updated your podcast, it might take up to 24 hours for the changes to appear.

3. **Internet Connection:** Make sure you have a stable internet connection. If your connection is unstable, try resetting your network settings or connecting to a different network.

4. **App Issue:** There could be an issue with the Apple Podcasts app. Try closing and reopening the app. If that doesn't work, try uninstalling and reinstalling the app.

5. **Apple ID:** Ensure you're signed in with the same Apple ID you used to subscribe to the podcast.

6. **Subscription Issue:** If you've recently unsubscribed and then resubscribed, it might take a while for the podcast to show up again.

7. **Apple Server Issue:** Sometimes, the issue might be on Apple's end. If you've checked everything else, it might be worth waiting a few hours to see if the issue resolves itself.

If none of these solutions work, you might want to reach out to Apple's support team for further assistance.