I bought leapmotion from 2015,now i can't play apps such like Kyoto,Sculpting,they told me the leapmotion was not connected,but i can play PolyDrop,robot chess very wellso what's wrong with my leapmotion?should i buy a new one?
The Leap Motion hardware is virtually unchanged since it's release and will work with all of the apps on the Leap Motion Gallery.
Make sure that the software installed is the right version for the application you are trying to use and the app has been downloaded directly from gallery.leapmotion.com.
If you are still having problems send me an email to support@ultraleap.com and I can help you directly.