Hi Marcos, SweX and Arakasi,
Arakasi - yes, my settings show as on your excellent screenshot.
Yes Marcos, the Eicar test file is detected as a threat and blocked. It is simply the cloudcar file.
SweX: I have the firewall changed to "interactive" and have ticked options to detect PUPs etc. Other than those changes, I don't believe I have changed anything else - nothing is unselected that shouldn't be as far as I can see .
Very strange.
Perhaps a full uninstall and re-install will fix it?
Bingo!
Uninstalled and re-installed ESS 7 and now successfully detecting CloudCar testfile as threat!
Very odd indeed!
Thank you to all who replied.