P: Missing example : of how filename is to be named/created in filename template editor

Hi, Not sure if this is the correct place to ask Lightroom questions if not I apologize.  Any way is this a BUG perhaps? Just noticed ......The filename template editor when editing would show an example of what the file options that were selected would look like. (it was right above the big white box near top) Its not there anymore! WHAT? WHERE did it go? I needed to make some changes to a newly imported set of images . in short wrong info was put on 3000+ images . basicly the original raw file #..did not stay with the new filename.some how got deleted when I added new info to filename EXAMPLE WAS NOT THERE.to VIEW how file would look like. I don't have original sd card to get Raw file #s from..... Much work was done to images before I noticed Thanks so much any help would be appreciated .