Hello! I understand you're experiencing an issue where, after saving and closing RoughAnimator, some animations or drawings might get deleted. That certainly sounds concerning. To help you best, could you tell me a bit more? For example, does this happen with specific files, randomly, or after certain actions? Also, which version of RoughAnimator are you using?

Meanwhile, here are some general steps we can try to prevent data loss:

1. Check Save Location: Ensure you are saving your animation in a stable location on your device where you have full write permissions (e.g., your Documents or a dedicated folder).

2. Save Frequently and Use "Save As": When working on your project, save often. Using "Save As" to create versions can help if something goes wrong.

3. Avoid Large Frame Moves: Sometimes, moving large amounts of frames before saving can cause data corruption or loss.

4. Backup Settings: If available, enable any backup or autosave feature in RoughAnimator. This helps restore your work if the app crashes or closes unexpectedly.

5. Export a Copy: After finishing your animation, export it as a video, GIF, or PNG image sequence as a backup outside the project file. You can access this via the menu icon on the top left.

6. Update or Reinstall: Make sure you are using the latest version of RoughAnimator, as updates often fix bugs related to saving and data corruption.

If you have already tried some of these or the issue persists, we might want to look deeper into possible file corruption or software bugs. Let me know if you notice any patterns or error messages when saving or closing, and we can proceed with further troubleshooting together.

Are you satisfied with this initial guidance, or shall we go deeper into specific steps?