Weird lines, occur more often on android device, need solution to get rid of the lines.

I’m working on a project, using unity 5.4. In this projects blocks are stacked next to eachother.

However there appear some annoying weird lines. Also on android these line occur more often than on PC. For illustration purposes I added an image and video. Please zoom in on the picture to see, the line I’m speaking of, clearly.

Could anyone please provide a solution to get red of this nuissance. Thanks in advance.

Video link: https://youtu.be/5wN1Wn51d_Y

Im pretty sure its just the cube beeing slightly higher then the cube infront of it.

It looks like it and makes sense as you describe the line moves when youre looking on it from a higher or lower position.

tl;dr move the cube down a little or copy the y coordinates of the cube infront of it.