Hi there! I understand you're having trouble with the date not changing for the daily picture feature in the Oil Painting Color app on your Kindle. Let's see if we can get this sorted out together.

1. Check Device Date Settings: First, make sure that the date and time settings on your Kindle device are set correctly. Go to Settings > Device Options > Date & Time. Ensure that the options for automatic date & time are turned on.

2. App Permissions: Sometimes, the app might not have permission to access necessary features. Go to Settings > Apps & Notifications > Oil Painting Color. Check if it has permission to access your device’s calendar or any other relevant settings.

3. Clear Cache of the App: If the problem still persists, try clearing the app’s cache. Go to Settings > Apps & Notifications > Oil Painting Color > Storage & cache, and select Clear Cache. This can help refresh the app and fix any temporary glitches.

4. Reinstall the App: If clearing the cache doesn't work, you might want to uninstall and then reinstall the app. This ensures that you have the latest version and that any corrupted files are removed.

5. Check for App Updates: Go to the Amazon Appstore, check for any available updates for the Oil Painting Color app, and install them if necessary.

If these steps don't resolve the issue, it could be a bug with the app itself. In that case, I would recommend reaching out to the support team by emailing them at [email protected] with detailed information about the problem you're experiencing.

Are you satisfied with the solutions I provided? If there's anything else you need or more assistance, just let me know!