Norton 360 safe icon missing on windows 10 google chrome

Have Norton 360 on Windows 10 PC 64 bit, I use Google Chrome for my internet searches.  

The green safe icons appear and disappear randomly, makes searching for safe sites very frustrating.  If I search with Norton 'safe search' the icons pretty much show up but I prefer to use Google Chrome.  

Under extensions I disabled Norton Home page for Chrome but have enabled Norton Safe search as default for chrome and Norton Security tool bar.  

Is there a solution to this?  And why do the safe site icons periodically disappear; not just now over the many years I've had this product this happens frequently?

Any help will be appreciated.