Hi there!
Better Search Replace Support Team here, Thanks for reaching out with your query we would be happy to assist
If you included wp_postmeta database table on the search and replace, the word “Vest” may have been found on the postmeta records and were replaced with “Waistcoat” which caused the broken images.
With this in mind, please investigate the postmeta records of the Media Library items that are currently broken.
You’ll first need to find the post ID of the media library file. You can do that by clicking the broken file on your media library > on the bottom of the attachment page, select “Edit more details” > on the URL, you should be able to find the post ID sandwiched between the “post=” and the “&.” Please see screenshot – https://share.zight.com/4gu86kAK
From there, you can view your wp_postmeta table using a tool like phpMyAdmin and find the post_id to find the media library file postmeta records.
Once you’ve found the postmeta records of that file, kindly inspect the data and check whether there are any Waistcoat added.
If that is the case, we highly recommend restoring from a previous backup to undo the changes. If you haven’t created one before running the search and replace, we recommend reaching out to your hosting provider for assistance as they may have a backup system in place.
Please let us know how that goes.
