A. 1. Check audio settings: Ensure that the audio track is not muted or turned down in the editing interface. 2. Re-import audio: If the audio is missing, try re-importing the audio file into your project. 3. Save and restart: Save your project, close the app, and restart it to see if the audio reappears.

B. 4. Use a different audio format: If you are using a specific audio format, try converting it to a more common format like MP3 or WAV before importing.