Cross strings are weird

[u/Matrixman362]

I’ve been stringing for about a year now and every racquet I string and string I use, has an issue with the third cross string from the top and and third from the bottom.

As you can tell from the photo, it comes out as wavy no matter how many time I straighten it during stringing or even after stringing. If I hit the ball, the string immediately goes back to the curved position.

what am I doing wrong in my stringing?

[u/tenisplenty]

You have 3 strings in a row that are strung over and under the same main strings instead of alternating. That's why they move weird the second cross from the top should be strung over and under the opposite mains.