Trusted files gone during Quick Scan

NIS 2011 -  (18.5.0.125)

 

For the last two days, starting on January 29,  the number of trusted files during Quick Scans dropped to 1 (one file).

Usually it is around 800 files.

This happens during both Idle and manual Quick Scans.

The settings have not been changed - still on Standard Trust.

Has anyone else experienced this?

 

Alex.