After migrating my website to a new hosting server, I encountered an issue with the image upload function. The resized images, automatically created by WordPress after uploading, appeared broken, displaying only black and gray lines. In this blog post, we’ll explore the possible causes of this problem and provide step-by-step solutions to address it without resorting to another hosting migration.
Possible Causes:
Several factors could contribute to the broken images issue:
- File Corruption during Transfer: If the images were corrupted during the migration process, it could lead to display issues. Check the integrity of the transferred files.
- Incorrect File Permissions: Ensure that the file permissions on the server are set correctly to allow WordPress to create and manipulate images.
- Incompatible Image Libraries: Different server environments may have varying support for image processing libraries. Confirm that your new hosting provider supports the required libraries for WordPress image processing.
Troubleshooting Steps:
- Verify Image Integrity: Download the broken images via FTP and compare them with the original ones. If discrepancies exist, consider reuploading the images or using a secure transfer method.
- Check File Permissions: Review and adjust file permissions to ensure that WordPress has the necessary rights to create and modify images. The recommended permissions are often 755 for directories and 644 for files.
- Update Image Processing Libraries: Confirm that your new hosting provider supports the image processing libraries required by WordPress. You may need to update or install relevant libraries like GD Library or Imagick.
- Regenerate Thumbnails: Utilize the “Regenerate Thumbnails” plugin to recreate image sizes. This plugin helps ensure that all thumbnails are generated according to the specifications set by your WordPress theme.
- Examine PHP Version Compatibility: Check if your WordPress version is compatible with the PHP version on the new hosting server. Updating WordPress to the latest version can often resolve compatibility issues.
Conclusion:
By following these troubleshooting steps, you should be able to resolve the issue of broken auto-created images after migrating to a new hosting server. Remember to double-check file integrity, permissions, and library compatibility before considering another hosting migration. If you encounter persistent problems, seeking assistance from your hosting provider’s support team may also be beneficial.