Confirmed. None of the shields doesn't show any activity.
Windows 7 x64
I have just done an eicar test and the alert function is working, image1. So the Summary status of Secured appears to be correct. But no activity in the actual interface for the Last file infected: field. In fact both these last scanned and last infected fields are greyed out in all shields, image2.
Edit: Web shield also checks out, see image3.