Posts Widget Carousel Does Not Display Correctly?

Facing the below-shown issue while setting the Carousel for posts?
Don』t worry! You just need to update some settings and it will work fine 
Why is this happening? 
The above case happens when under the General tab, for carousel layout, the number of Posts Per Page is less than or equal to the number of Columns. For example, if the number of columns is 2 and Posts Per Page is set to 2 then the carousel will not display correctly.
How to fix it?
The carousel will work fine only when the number of Posts Per Page is greater than the number of Columns. That means if the number of columns is 2 then Posts Per Page should be 3.