iPhone 6s animation problem
Hi everybody! I was wondering if someone has been experiencing problems with the animations of its phone. The problem with my phone appears spontaneously, I mean, the phone is working okay and suddenly the animations that normally comes up when you open or close an app STOPS WORKING! And the phone come to its senses when i restart the phone, i mean, shut it down and turn it on. Can anybody please help me? i already tried reestoring its containing, and it happened again before i did that.
iPhone 6s, iOS 9.2.1, the phone is barely new