Screen will not swipe to accept incoming calls, why?

[AC Question]

Screen will not swipe to accept incoming call

Phone is an HTC1 M8, purchased 9 mths ago. But always a problem to answer incoming calls...will not swipe from green to accept the incoming call

 

[B. Diddy]

Re: Screen will not swipe to accept incoming call

Welcome to Android Central! Does the screen not respond to the swipe? Are you sure you're swiping in the right direction? I can't remember if the M8's answer screen changed with Lollipop.