My alarm clock screen disappears when I go to set alarm

[Android Central Question]

When I go to set new alarm through clock app the screen just disappears after showing the time for setting. The other icons world clock, timer etc are normal showing when I tap on them. When I tap on the alarm clock , on top right of the screen Add comes. If I try to tap it, it just shows the time settings for a second and dissappears.
I tried clearing cache, data etc. But no use. Also the disable icon is not highlighted. So is it disabled? Please help..

 

[belodion]

Try another clock app diagnostically.