SEP content is properly being downloaded to the client, however the client fails to load the new content, causing SEP to not update to the latest content.
Release :14.3 RU 3
Missing DecTemp Folder in C:\ProgramData\Symantec\Symantec Endpoint Protection\14.3.5413.3000.105\Data
This folder is used by SEP to decompress files, including when updating virus definitions.
The SEP client will now be able to successfully update content.
In order to prevent this from occurring in the future, customers should set SEP's Tamper protection to Block and Log, to ensure that other applications or scripts do not delete SEP files or directories.