The tray icon has never been animated during on-demand scans, and in fact, was never supposed to be. It's an indication of the activity of real-time shields.
its good to know -BUT i think nobody knew it ....
you can read all 4 pages what i went through this issue and it was for nothing!
i suggest change the option
"animate the icon when scan"to something much comprehensive....
Thank you bob3160 as well !