Hello,
Yes, issues with product images are not uncommon in Magento 1.9.0.1, but they can usually be resolved with some troubleshooting. Here are a few things you can try:
Check your image cache: Magento stores resized images in a cache folder, and sometimes this cache can become corrupted. Try clearing your image cache by going to System > Cache Management > Flush Catalog Images Cache. This will clear the cache and regenerate the images.
Check your file permissions: Ensure that your image files have the correct permissions to be read by the server. The recommended permission is 644 for files and 755 for directories.
Check for conflicting extensions: Sometimes third-party extensions can cause conflicts with product images. Try disabling any recently installed extensions to see if that resolves the issue.
Check for database issues: The issue may be related to your Magento database. You can try repairing your database by going to System > Tools > Compilation and clicking the "Run Compilation Process" button.
Re-index your data: Image issues can also be caused by incomplete or outdated data. Try re-indexing your data by going to System > Index Management and clicking "Reindex Data" for all indexes.
If these steps don't resolve the issue, you may need to enlist the help of a Magento developer to further troubleshoot the issue. They will be able to review your server logs and database to determine the root cause of the problem and recommend a solution.