I don’t know what to make of this or how to describe it so I made a little screen cap video to show. Basically I have a section that I made into symbol. I drop it onto my page and unlink it so I can make edits to it. When I duplicate a divs class, everything is ok, until I preview it. When I return to the design space, one of the divs (which I am using to create a line) changes size for no reason. Not only that, but every div that has that class, changes sizes.
I have no idea why this is happening. Just changing the class name, should not effect it…should it? Here is the video: