Reply To: Same tracking, different results

Unfortunately, there is often no way to make line breaks the same from one version of InDesign to the next (if the text reflows).

It’s usually not a big change, but there are often tiny changes from one version to the next that cause reflow. InDesign has a clever feature that freezes the text reflow as long as you do not edit the story. But as soon as you make an edit, or you press the secret shortcut to reflow all the text (command-option-slash, if I recall), the text reflows with the newest “rules.”

If you use the Single Line Composer instead of the Paragraph Composer, it can sometimes help, but if the original document used the Paragraph Composer (which it probably did), then that doesn’t necessarily help. More info here:

Five Typesetting Mysteries Solved