Bugs

[Muzeeb]

It is a bugs in Samsung Keyboard new version "5.1.05.9" see these pictures, Emoji icon is not free of Shape, it is Quadrilateral shape of all emojies 

[Sanskar]

no it is not because of keyboard. you have forced left to right in developer options. that's why this is happening.

[Muzeeb]

now see. Disable forced left to right

[Ehsank]

once go to keyboard settings and reset to default