Creating a new swatch group from selection adds swatches that aren't used anywhere.
At the end of a project, I like to select everything on an artboard and create a swatch group with "Convert Process to Global" checked in order to clean up my swatches and make final global tweaks to color.
Often a handful of swatches will be added that aren't apparently used anywhere. I can verify this by selecting the swatch as a fill or stroke, then choosing Select > Same Fill (or Stroke) color. Nothing will be selected for either option. So is this a glitch, or how else can I find and delete the source of the swatch?
Unfortunately I can't with this particular file, but I will when I notice it with a file that is shareable.
Marc, can you share such a file? Without one it’s hard to test it.