lumia 640 scroll issue

[WPCentral Question]

just got a new lumia 640 dual sim.
the phone scrolls perfectly while dragging the screen but does not scroll properly during a flick.
the problem exactly like this one - /watch?v=oliOqvfZE4k on youtube

any fixes?

 

[Strfox]

I recall early Windows Insider builds having the same problem with the start screen...
Since it's a new phone, see if there's updates to Display + Touch from store.
Cannot post links from this account, but there's another thread telling that unpinning Cortana from start screen could also help.