Issue
After the release of version 4.1046 of the Application Control signatures on 26 May 2020, devices with the Full signature set show the text "WARRING: No Cat/App Name" instead of application names in Application Control actions.
Devices with other signature sets are not affected by this issue.
Workaround/Solution
Install version 4.1044 of the Application Control signatures:
If you have automatic signature updates enabled, version 4.1044 will install automatically.If you do not have automatic signature updates enabled, update Application Control signatures manually. For more information, see Subscription Services Status and Manual Signatures Updates in Fireware Help.
After version 4.1044 is installed, reboot the Firebox.