The gallery doesn't focus pictures

[AC Question]

I have a Galaxy S4 and from few days I am seeing that the phone's gallery doesn't focus any pictures, even if it is high quality (2500x4100, 3.5mb).
But if I use any other program to see pictures, it focuses them easily and automatically.
What can I do?

 

[ManiacJoe]

If the built-in picture viewer is having problems, the quick and easy solution is to use a different picture viewer.
My favorite is "piktures" by Diune
https://play.google.com/store/apps/details?id=com.diune.pictures