A critical bug has been identified last night and fixed that could have caused the database diagnosis to empty global Attribute sets. I apologize for any inconvenience caused by this.
Please download and install IMatch 2025.1.8 as soon as possible if you use global Attribute sets.
Restore your last database backup in case you find that your global Attribute Sets are empty.
See this community thread (https://www.photools.com/community/index.php/topic,14842.0.html) for more information.