Highlighted gcode doesn't follow current position.

But what was on lines 1-4? The screen shot of your code does't show. It would have been better (and used less bandwidth) to upload the actual g-code file, rather than an image of a screen shot.

Whenever I tap the file icon with the + on it to create a new program, it starts off with 1-4 as empty lines before it puts M2 on the 5th line. This was throwing off the sequence between the program vs what was shown in the preview creating my issue. Now that I'm aware of it I can delete the empty lines prior to writing the program.

Since I understood absolutely nothing from the author's description of the thread, and the matter intrigued me, I decided to try to reproduce this error.

It looks like this:
 
Here with the dark theme, which in my opinion is absolutely useless in practice, but shows better which line is highlighted:
 

To sum up.
The error only occurs when the percent sign is preceded by blank lines. (If any text precedes it, the program cannot be loaded.)
Then, if we select a path in the preview, the nth line of the file will be highlighted in the file window instead of the nth line of g-code.

Overall, the error is insignificant and occurs in very specific conditions, but this thread is proof that the user can become very confused...