what wrong with icon widgets?

I need to add icon on that desktop link to my application . when I add icon widget , the application tab missing .
I solve it by go to desktop folder and right click–create new – Link to application . then the icon with the application tab show up.

one of the icon on desktop I create show up but missing the description (just the graphic icon only the below words missing). I don’t know why and couldn’t find way to solve other than delete and create again