A few years ago I damaged some of my databases, probably by interrupting a sync operation. (I only ever import files). From time to time when searching my older data, I come across files that only have a thumbnail, marked as “File not available”, (with an option to import the file, which of course, does not work).
I do have backups, and this has not caused me much of a problem. However, I would like to find a way to locate all of these thumbnails, so as then to delete them (or, if they are important, to find them in a backup file).
I am wondering if there is there a way to create a smart group or advanced search that will find all these thumbnails of missing files?