Why is OneDrive showing incorrect or missing thumbnails for my photos?

1. Check your internet connection
2. Check the version of OneDrive you are using
3. Verify if the same issue occurs on other devices
4. Restart the device
5. Update your device software
6. Unsync the folder from OneDrive and resync it back
7. Check if your files are supported by OneDrive
8. Clear the app cache of OneDrive
9. Uninstall and reinstall the OneDrive app